Aplasia Cutis Congenita (ACC)

Aplasia cutis congenita (ACC) means a baby is born with one or more small areas where the skin is missing. In most babies, the patch is on the scalp (often on the top/vertex), but it can appear anywhere on the body. The missing skin may involve just the top layer (epidermis), deeper layers (dermis), and sometimes tissue underneath. Many cases are isolated and heal well; some are part of a genetic or developmental syndrome. NCBI+2DermNet®+2

Aplasia cutis congenita means a baby is born with an area where the skin did not form. It is usually a small round or oval patch on the scalp. Sometimes the missing area can be deeper and involve the layers under the skin, like fat, bone, or the protective tissue over the brain. Most babies have only one small lesion and recover well with careful wound care. Rarely, ACC is part of a genetic syndrome (for example, Adams–Oliver syndrome), which also involves limb or heart findings. DermNet®+2NCBI+2

Typical lesions are round or oval, may be covered by a thin, shiny membrane, or look like a shallow ulcer at birth. A “hair-collar sign” (a ring of thick, dark hair around a scalp lesion) can hint that deeper bone or brain coverings beneath might also be affected, which is why doctors sometimes order imaging. DermNet®

Another names

• Cutis aplasia

• Congenital localized absence of skin

• Congenital scalp defect

• Bart syndrome (when ACC occurs with epidermolysis bullosa—see Types)
  These labels all refer to overlapping clinical pictures in the ACC family. DermNet®+1

Types

Doctors commonly group ACC into nine patterns based on where it appears and what else is associated. This helps guide evaluation for hidden problems. ScienceDirect+1

1. Type I – Scalp ACC without other anomalies: the most common, usually a single scalp patch and otherwise healthy baby. BioMed Central

2. Type II – Scalp ACC with limb abnormalities: often part of Adams–Oliver syndrome (AOS), which combines scalp defects with missing or short fingers/toes. PubMed+1

3. Type III – Scalp ACC with epidermal/organoid nevi: ACC occurs alongside birthmark-type lesions (epidermal nevi). NCBI

4. Type IV – ACC overlying other malformations: e.g., over encephalocele or meningoceles, so imaging is important. NCBI

5. Type V – ACC with fetus papyraceus/placental infarct: classically multiple, symmetric, “H-shaped” or butterfly patterns on trunk/limbs; linked to a vanished twin or placental vascular events. BioMed Central+1

6. Type VI – ACC with epidermolysis bullosa (Bart syndrome): skin absence on extremities with fragile, blistering skin and nail changes. PMC+1

7. Type VII – ACC limited to limbs without blistering. NCBI

8. Type VIII – ACC due to teratogens: linked to drug or toxin exposures in pregnancy (classically methimazole/carbimazole). PMC+1

9. Type IX – ACC with malformation syndromes: reported with Patau (trisomy 13), Wolf–Hirschhorn (4p–), Setleis, Johanson–Blizzard, and focal dermal hypoplasia (Goltz). Medscape

Causes

ACC can result from different pathways: genetic programs of skin development, blood-flow problems, mechanical forces, infections, and certain medications. Often, no single cause is found in an individual baby.

1. Isolated developmental glitch – a localized pause in skin formation during fetal life creates a small “hole” in the skin. Many Type I cases fit here. NCBI

2. Genetic variants in Adams–Oliver syndrome – changes in NOTCH signaling genes (e.g., ARHGAP31, DOCK6, EOGT, RBPJ, NOTCH1, DLL4) can impair skin and vessel development, causing scalp ACC with limb defects. PubMed

3. Bart syndrome (with epidermolysis bullosa) – gene defects that weaken skin anchoring (often COL7A1 in dystrophic EB) lead to fragile skin and areas of absent skin at birth. PMC

4. Trisomy 13 (Patau syndrome) – may cause large, thin-membranous scalp defects as part of a broader syndrome. Medscape

5. Wolf–Hirschhorn (4p–) syndrome – sometimes shows midline scalp ACC with facial and other anomalies. Medscape

6. Johanson–Blizzard syndrome – a rare syndrome with distinctive facial features and possible stellate scalp defects. Medscape

7. Focal dermal hypoplasia (Goltz syndrome) – ectodermal/mesodermal development issues can include ACC-like lesions. Medscape

8. Setleis syndrome – bitemporal scalp ACC with eyelash changes due to facial development abnormalities. Medscape

9. Vanishing twin (fetus papyraceus) – clots or other by-products from a demised twin may disrupt skin blood supply in the surviving fetus, causing the symmetric trunk/limb pattern (Type V). BioMed Central

10. Placental infarction or vascular accident – reduced blood flow to a skin region during pregnancy can arrest skin formation. BioMed Central

11. Amniotic band sequence – fibrous bands can physically injure skin in utero and leave ACC-type defects. Medscape

12. Maternal antithyroid drugs (methimazole/carbimazole) – classic, dose-independent teratogenic link; numerous case reports and reviews connect exposure with ACC. PMC+1

13. Other drugs/toxins (possible/reported) – associations reported with misoprostol, valproate, cocaine and others; evidence is mixed, so clinicians interpret cautiously. Wikipedia

14. Intrauterine infections – varicella (chickenpox) or herpes infections during pregnancy have been associated with ACC-like scars or absence. Wikipedia

15. Mechanical pressure/trauma – focal pressure against the uterine wall or instrumentation could contribute to an isolated patch in some cases. NCBI

16. Embryologic malformations underneath – if a bone or neural tube defect lies beneath, the overlying skin may fail to form fully (Type IV). NCBI

17. Vascular gene disorders without limb defects – even without full AOS, milder variants in the same pathway may act via impaired microcirculation to skin. (Inference consistent with NOTCH-pathway AOS literature.) PubMed

18. Epidermal nevus/skin mosaicism – adjacent developmental birthmarks (epidermal nevi) can coexist with focal absence of skin (Type III). NCBI

19. Epidermolysis bullosa (non-Bart variants) – several EB subtypes have been reported with congenital absence of skin on high-friction areas. PMC

20. Unknown/idiopathic – even after full evaluation, many single small scalp lesions have no identifiable cause and heal well. NCBI

Symptoms and Signs

1. A well-defined skin-missing patch at birth – often 0.5–3 cm; can be larger. NCBI

2. Location on the scalp – about 70–90% are on the vertex; elsewhere is less common. PubMed

3. Thin, shiny membrane over the area or a shallow ulcer; sometimes a scab forms as it heals. DermNet®

4. Hair-collar sign – a ring of thicker/darker hair around the lesion suggests deeper involvement beneath. DermNet®

5. Bleeding or oozing from the open area in the first days; usually controllable with routine care. NCBI

6. Scar and hairless patch later – most lesions heal into a smooth, hairless scar. DermNet®

7. Underlying skull defect (some cases) – larger midline scalp lesions can overlie bone/galeal defects; very rarely, meninges are exposed. NCBI

8. Limb abnormalities (in AOS) – missing tips of fingers/toes, short digits, or limb vessel issues. PubMed

9. Fragile, blistering skin (in Bart syndrome) – easy blistering on hands/feet and nail dystrophy. Karger

10. Facial features or multi-system anomalies – if ACC is part of a syndrome (e.g., trisomy 13), there may be heart, brain, facial, or growth differences. Medscape

11. Pain or tenderness at the site initially; improves as it heals. NCBI

12. Risk of infection of the open area – careful wound care lowers this risk. NCBI

13. Cosmetic concern – visible hairless patch on scalp may be an aesthetic issue later in childhood. DermNet®

14. Rare serious complications – very large lesions can bleed, get infected, or, if deep, threaten underlying structures—these need urgent specialist care. NCBI

15. Normal overall health in most isolated cases – most babies with a single small scalp lesion grow and develop normally. DermNet®

Diagnostic Tests

Goal: confirm ACC, check how deep it is, look for associated problems, and identify a cause when possible.

A) Physical Examination

1. Full newborn skin exam – confirms a well-marginated area of missing skin and checks for more lesions or signs of blistering. NCBI

2. Measure size, shape, and location – larger/midline scalp lesions are more likely to have bone involvement. NCBI

3. Look for the hair-collar sign – prompts imaging for deeper defects under scalp lesions. DermNet®

4. Head and fontanel palpation – gently assesses bone integrity and any defect beneath the lesion. NCBI

5. Systems review for syndromic clues – limbs (AOS), nails/blistering (Bart), facial features, heart, abdomen, and neurologic exam. PubMed+1

B) Manual/Bedside Tests

6. Transillumination of scalp lesion – a simple light test; glow suggests thin soft tissue and possible bony defect. (Bedside adjunct that helps decide imaging.) NCBI

7. Serial photographs for wound evolution – documents healing trajectory and alerts to infection or expansion. NCBI

8. Gentle hair-pull test around the rim – assesses hair stability and delineates the border of involvement. (Clinical practice detail; adjunct to exam.) DermNet®

9. Limb perfusion checks (capillary refill, pulses) – important when AOS or vascular issues are suspected. PubMed

10. Developmental screening – tracks growth/neurologic milestones if a syndromic diagnosis is considered. Medscape

C) Laboratory & Pathology

11. Genetic testing – targeted panels or exome focusing on AOS genes (NOTCH pathway) or EB genes when clinically indicated; chromosomal microarray/karyotype if trisomy or deletion syndromes are suspected. PubMed+1

12. Infection workup when history suggests – TORCH serologies (e.g., varicella, herpes) if maternal infection is suspected. Wikipedia

13. Maternal/medication history review – careful documentation of first-trimester exposures (e.g., methimazole/carbimazole) supports a Type VIII categorization. PMC

14. Wound culture if secondarily infected – only if drainage, fever, or spreading redness develops. NCBI

15. Pathology (rarely needed) – biopsy is uncommon in neonates but can confirm EB subtype or exclude other conditions if the diagnosis is unclear. Karger

D) Electrodiagnostic

16. EEG – if seizures occur in the setting of large cranial defects or associated brain malformations, EEG helps evaluate cortical irritability. (Used selectively.) NCBI

17. Brainstem auditory evoked response (ABR) – if a syndromic pattern raises concern for hearing issues (e.g., some ectodermal syndromes), ABR screens hearing objectively in infants. Medscape

18. ECG – in AOS, where congenital heart disease can co-occur, an ECG complements echocardiography to assess rhythm or conduction. BioMed Central

E) Imaging

19. Cranial ultrasound – quick, bedside look through the fontanel to assess soft tissues and bone under a scalp lesion in young infants. NCBI

20. Skull radiographs (limited use) – can show a calvarial defect beneath a vertex lesion when ultrasound is not definitive. NCBI

21. CT head with bone windows – best for defining skull involvement when a sizeable or midline scalp lesion suggests deeper defects. Use judiciously due to radiation. NCBI

22. MRI brain/scalp – defines soft-tissue, dural, or venous sinus involvement and any associated brain anomaly without radiation. NCBI

23. Doppler ultrasound of limbs – if AOS is suspected, evaluates limb vessel patency and flow. PubMed

24. Echocardiogram – screens for congenital heart defects that can accompany AOS and related syndromes. BioMed Central

25. Targeted systemic imaging – e.g., abdominal ultrasound if a midline defect raises concern for other organ malformations. (Used case-by-case.) NCBI

Non-pharmacological treatments (therapies & other measures)

(Each item includes purpose and mechanism in simple terms.)

1. Gentle wound cleansing – Clean the lesion with sterile saline. Purpose: remove crusts and germs. Mechanism: reduces bacteria without harsh chemicals on newborn skin. DermNet®

2. Moist wound healing with petrolatum gauze – Keep the area moist using plain petrolatum or petrolatum-impregnated gauze. Purpose: support new skin growth. Mechanism: an occlusive barrier prevents drying and helps epithelial cells migrate. Ymaws

3. Non-adherent dressings – Use soft, non-stick dressings changed as advised. Purpose: protect the wound while minimizing trauma when removed. Mechanism: reduces friction and preserves fragile new skin. AACN Journals

4. Antimicrobial barrier dressings (clinician-directed) – In higher-risk wounds, teams may use dressings with antimicrobial properties. Purpose: lower infection risk. Mechanism: sustained local antimicrobial action at the surface. AACN Journals

5. Close temperature and fluid care – Keep baby warm and well hydrated during dressing changes. Purpose: support healing in neonates. Mechanism: prevents heat and fluid losses from open skin. PMC

6. Careful handling & protection from trauma – Avoid pressure or rubbing. Purpose: prevent bleeding or deeper injury. Mechanism: reduces mechanical stress on the thin lesion. NCBI

7. Breastfeeding support / adequate infant nutrition – Ensure adequate calories and protein intake per pediatric guidance. Purpose: supply building blocks for skin repair. Mechanism: proteins and micronutrients aid collagen and epithelial growth. DermNet®

8. Parental education on infection signs – Teach families to watch for redness, swelling, pus, fever, or baby discomfort. Purpose: early detection. Mechanism: quicker treatment prevents spread. DermNet®

9. Safe sun protection after healing – Once healed, protect the scarred area from sun with hats and shade. Purpose: reduce sun sensitivity. Mechanism: scar tissue is vulnerable to sun damage. DermNet®

10. Scalp protection – Use soft caps/head coverings if advised. Purpose: protect healing scalp from scratches. Mechanism: physical barrier reduces friction. DermNet®

11. Serial photography and measurements – Track size and healing over time. Purpose: objective follow-up. Mechanism: helps decisions about dressings or escalations. NCBI

12. Multidisciplinary review – Dermatology, neonatology, plastic surgery, and genetics collaborate for larger or syndromic cases. Purpose: integrated care. Mechanism: team planning reduces complications and tailors timing of surgery. NCBI

13. Genetic counseling (when indicated) – If limb defects or other features suggest a syndrome, counseling can guide testing and future planning. Purpose: clarify cause and recurrence risk. Mechanism: panel/exome testing for known genes in Adams–Oliver and related disorders. PubMed+1

14. Ultrasound or MRI when deeper defect suspected – Imaging chosen by the team. Purpose: map bone or dural involvement. Mechanism: detects skull gaps and safer surgical paths. Medscape

15. Protective hemostatic strategy – For midline scalp lesions, clinicians avoid pressure on exposed veins and prepare for bleeding control. Purpose: prevent hemorrhage. Mechanism: reduces risk from the superior sagittal sinus. Surgical Neurology International

16. Pain minimization – Swaddling, skin-to-skin contact, and clinician-guided analgesia. Purpose: keep baby comfortable. Mechanism: lowers stress that can hinder healing. NCBI

17. Infection control precautions – Hand hygiene and clean technique for every change. Purpose: prevent neonatal sepsis. Mechanism: reduces bacterial transfer to the wound. PMC

18. Delayed elective surgery until safe – If surgery is planned, timing depends on size, depth, and baby’s stability. Purpose: balance healing vs. anesthesia risk. Mechanism: allows skin to mature and risks to fall. Karger

19. Tissue expansion (later, for cosmesis/hair) – In older infants/children, plastic surgeons may use tissue expanders to improve hair-bearing scalp. Purpose: better cosmetic match. Mechanism: slow stretching grows extra scalp skin for coverage. e-acfs.org

20. Long-term scar care – Gentle massage when healed, and monitoring for alopecia. Purpose: soften scar and track cosmetic outcomes. Mechanism: promotes flexibility and detects concerns early. DermNet®

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Drug treatments

Important safety note: ACC treatment in newborns is individualized. Do not self-apply medicines to a newborn’s wound. Dosing in babies is weight- and age-specific and must be prescribed by clinicians.

1. Topical plain petrolatum (Vaseline) – Keeps the wound moist and protected; first-line for small superficial lesions. Mechanism: occlusive barrier supports epithelial migration. Side effects: rare contact irritation. Ymaws

2. Topical mupirocin (by prescription when bacterial risk is high) – Targets Staphylococcus aureus on the wound surface. Purpose: reduce local bacterial load when contamination or early infection is suspected. Side effects: local irritation; resistance risk if overused. DermNet®

3. Topical bacitracin/polymyxin combinations (clinician-directed) – Broad topical antibacterial cover in select cases. Purpose: short-term infection prevention. Side effects: contact dermatitis; rare allergy. DermNet®

4. Topical silver sulfadiazine 1% (specialist-guided use) – Common in case series for larger superficial areas; applied with careful monitoring. Purpose: antimicrobial action over exudative wounds. Mechanism: silver ions disrupt bacterial cell walls. Side effects/cautions: can delay epithelialization; theoretical systemic absorption in neonates; avoid in sulfa allergy—use only if prescribed. PMC+2analesdepediatria.org+2

5. Topical nitrofurazone 0.2% (in some centers) – Alternative topical antibacterial used in certain regional protocols. Side effects: contact sensitivity; use only if recommended by care team. analesdepediatria.org

6. Topical povidone-iodine (limited, short use if at all) – Some reports alternate povidone-iodine with silver agents; many teams avoid routine iodine on neonates because of thyroid effects—use only if team advises. Taylor & Francis Online

7. Barrier creams (zinc oxide) – For non-scalp peripheral lesions at risk of friction. Purpose: protect edges from maceration. Side effects: minimal. DermNet®

8. Systemic antibiotics (only if infection) – If redness, pus, fever, or cellulitis occur, doctors choose an age-appropriate antibiotic (e.g., anti-staphylococcal agents) and dose by weight. Purpose: treat spreading infection. Risks: antibiotic side effects and resistance. NCBI

9. Analgesics (acetaminophen per neonatal protocol) – For discomfort with dressing changes. Purpose: pain relief. Mechanism: central COX inhibition. Side effects: liver toxicity if overdosed—dosing must be clinician-set. NCBI

10. Topical anesthetics (rare, specialist use) – Occasionally used in procedures; neonate use is tightly controlled to avoid toxicity. Purpose: short-term procedural comfort. NCBI

11. Topical antimicrobial foams/films (specialist choice) – Some centers use advanced dressings with antimicrobial properties to reduce change frequency. Purpose: maintain moist, cleaner environment. AACN Journals

12. Topical silicone gel (after full epithelialization) – For scar optimization later on. Purpose: flatten and soften scars. Side effects: minimal irritation. DermNet®

13. Hemostatic agents (operating room use) – Surgeons may use topical hemostatics during repair if bleeding risk is present. Purpose: control bleeding around scalp veins. PubMed

14. Antiseptic saline soaks (short, clinician-directed) – To loosen crusts before dressing changes. Purpose: gentle debridement. Side effects: minimal if sterile. PMC

15. Antifungal therapy (rare, if secondary fungal infection) – Used only when cultures or exam suggest fungal involvement. Purpose: treat proven infection. NCBI

16. Post-op antibiotics (surgeon-directed) – Short courses around skin grafts or flaps as per surgical protocol. Purpose: reduce surgical site infection risk. Karger

17. Emollients for surrounding skin – Prevent dryness and cracking near the wound. Purpose: protect the border skin. DermNet®

18. Topical honey/medical honey (only if team uses it) – Some centers employ medical-grade honey products in pediatric wounds; use strictly under protocol. Purpose: antimicrobial and moist healing environment. AACN Journals

19. Tetanus prophylaxis (per local neonatal guidelines if indicated) – Considered in traumatic neonatal wounds; ACC alone typically sterile at birth—follow clinician guidance. Purpose: prevent tetanus in special contexts. NCBI

20. Vitamin D (routine infant supplementation, not ACC-specific) – Given for overall infant bone/health per pediatric policy; does not treat ACC itself. Purpose: general infant health. Genetic Diseases Center

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Dietary molecular supplements

There are no supplements proven to “cure” ACC. For newborns, nutrition is primarily breast milk or appropriate formula. Any supplement for a baby should be prescribed by a pediatrician. Below are nutrition-informed points that clinicians consider around wound repair and general infant health.

1. Adequate protein intake (through milk/formula) – Provides amino acids for new skin. Mechanism: supports collagen and keratinocyte growth. DermNet®

2. Balanced calories – Prevents catabolism and supports growth and wound repair. Mechanism: energy for cell division and matrix formation. DermNet®

3. Zinc (clinician-directed only if deficient) – Important for DNA synthesis and epithelial repair; in neonates, dosing requires medical supervision. Mechanism: cofactor for enzymes in healing. Genetic Diseases Center

4. Iron (only if deficiency is documented) – Supports oxygen delivery and cellular metabolism; neonatal dosing is medical. Mechanism: hemoglobin and enzymatic function. Genetic Diseases Center

5. Vitamin C (maternal nutrition emphasis) – Supports collagen cross-linking; infants usually receive adequate amounts via standard feeding. Mechanism: cofactor for prolyl/lysyl hydroxylase. Genetic Diseases Center

6. Vitamin A (avoid excess; medical dosing only) – Regulates epithelial growth; too much is harmful. Mechanism: gene regulation of keratinization. Genetic Diseases Center

7. Vitamin D (routine pediatric policy) – For bone and immune health; not a treatment for ACC. Mechanism: calcium/phosphate regulation. Genetic Diseases Center

8. Essential fatty acids (through milk/formula) – Support cell membranes and skin barrier. Mechanism: structural lipids and eicosanoids. Genetic Diseases Center

9. Copper (only if deficiency suspected) – Collagen cross-linking enzyme cofactor; medical oversight required. Mechanism: lysyl oxidase function. Genetic Diseases Center

10. Folate/B12 (maternal diet emphasis) – Support rapid cell division; infants usually covered via milk/formula; only supplement an infant under medical advice. Mechanism: nucleotide synthesis. Genetic Diseases Center

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Immunity-booster / regenerative / stem-cell drugs

There are no approved immune-booster pills, regenerative drugs, or stem-cell treatments for ACC in newborns. Research and surgical reconstruction—not systemic “regenerative” medications—are the standard. Any claims of stem-cell cures for ACC in infants are experimental and not recommended outside formal trials. If you see such claims online, discuss with your pediatric specialist first. NCBI

• If a clinician discusses growth factors or biologic matrices, these refer to surgical materials or dressings used locally, not systemic drugs; they are selected by surgeons for specific defects. PMC

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Surgeries

1. Local rotation/advancement scalp flaps – Surgeons rotate nearby hair-bearing scalp to cover the defect. Why: strong, like-for-like tissue with hair; especially for larger scalp lesions, often once the baby is stable. Karger+1

2. Split-thickness or full-thickness skin grafts – A thin skin layer from a donor site covers the area. Why: to close wider defects when local flaps are insufficient or as a staged plan. PMC

3. Acellular dermal matrices / autologous epithelial grafting – Biological scaffolds or epithelial sheets help cover and re-epithelialize. Why: bridge large superficial areas and improve take. PMC

4. Tissue expansion (delayed) – Insert a balloon expander under nearby normal scalp, gradually fill, then use expanded skin to resurface. Why: better cosmetic match and hair coverage later. e-acfs.org

5. Cranioplasty (rare, selected cases) – Repair skull bone if a significant defect persists. Why: protect brain structures; usually deferred because many infant skull gaps ossify with time. Thieme

Surgical timing depends on lesion size, depth, venous exposure, and the baby’s condition; teams balance bleeding risk, infection risk, and anesthesia safety. Karger

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Prevention

1. Prenatal care and medication review – Discuss any medicines or exposures with obstetricians; some teratogens have been associated with ACC in reports. Genetic Diseases Center

2. Avoid unproven topical agents in pregnancy unless approved by obstetrics. Genetic Diseases Center

3. Safe delivery practices – Gentle handling to avoid scalp trauma in babies already affected. NCBI

4. Early specialist referral for large lesions – Reduces risk of bleeding/infection. Surgical Neurology International

5. Strict hand hygiene and clean dressing technique at home. AACN Journals

6. Protect from friction and pressure on the healing area. DermNet®

7. Keep dressings dry and intact as instructed. PMC

8. Follow scheduled check-ups for size tracking and early escalation. NCBI

9. Vaccinations as per schedule (general infant health). Genetic Diseases Center

10. Seek genetic counseling if ACC occurs with limb or other anomalies to guide future pregnancy planning. PubMed

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When to see doctors

Seek urgent care now if you see any of these: bleeding that soaks dressings, rapidly enlarging swelling, fever, pus or foul smell, baby is very irritable or lethargic, the lesion looks deeper or bulging, or you notice new neurologic signs. These can be signs of infection or bleeding and need immediate attention. Surgical Neurology International

Routine follow-up: even for small lesions, keep appointments with pediatrics/dermatology to check healing, adjust dressings, and decide if plastic surgery is needed later for cosmetic reasons. DermNet®

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What to eat and what to avoid

Infants: feed breast milk or appropriate formula on schedule; this provides the protein, calories, fluids, and vitamins needed for normal growth and wound healing. Do not give over-the-counter supplements to a newborn unless your pediatrician prescribes them. Genetic Diseases Center

Breastfeeding parents: maintain a balanced diet rich in protein, fruits/vegetables (vitamin C), whole grains, and healthy fats. Avoid excessive vitamin A or herbal “wound-healing” products without medical approval during breastfeeding. Stay hydrated. Genetic Diseases Center

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FAQs

1) Will the skin grow back?
Many small, superficial ACC lesions re-epithelialize (skin grows over) in weeks with moist dressings. Scars and hair loss may remain. Larger or deeper lesions may need surgery. DermNet®

2) Is ACC painful for the baby?
Shallow lesions can be sensitive. Teams use gentle care and appropriate analgesia. Good dressing technique helps keep babies comfortable. NCBI

3) Can ACC bleed?
Yes—especially midline scalp lesions near the superior sagittal sinus. This is why larger lesions are watched closely or repaired early. Surgical Neurology International

4) Do we always need scans?
Not for small, flat, superficial patches. Imaging is used for larger, midline, membranous, or deep-looking lesions to plan care safely. Medscape

5) Is ACC genetic?
Most isolated cases are not inherited. When ACC is paired with limb defects or other issues, doctors consider genetic syndromes like Adams–Oliver and may recommend testing. PubMed+1

6) What is Adams–Oliver syndrome?
A syndrome that combines ACC with limb defects and sometimes heart or vascular findings; several genes in the Notch pathway and others are known. NORD+1

7) Can we use antiseptics like iodine on the wound?
Only if your clinical team advises. Some centers avoid routine iodine in neonates; protocols vary and are doctor-directed. Taylor & Francis Online

8) Are “natural” oils or home remedies safe?
Avoid unproven substances on newborn wounds. Use only clinician-approved dressings and medicines. DermNet®

9) Will my child need surgery?
Only some do—usually larger or deeper defects. Surgeons individualize timing to reduce risks and improve outcomes. Karger

10) Can hair grow back?
Hair usually does not regrow over the scar. Later, tissue expansion or other plastic surgery techniques can improve appearance. e-acfs.org

11) Is silver sulfadiazine always used?
No. It is one option in some centers for exudative wounds but has cautions in neonates; many teams prefer plain petrolatum and non-adherent dressings for small lesions. Follow your team’s protocol. Ymaws+1

12) How long does healing take?
Small superficial lesions may epithelialize in weeks. Larger lesions or surgical sites take longer and need careful follow-up. DermNet®

13) Do vaccines affect healing?
Routine infant vaccines support overall health and are important; they do not slow ACC wound healing. Follow your schedule. Genetic Diseases Center

14) Could ACC be confused with a birth injury?
Doctors consider the history and appearance. ACC typically has clear, well-defined borders and a characteristic look on the scalp. Imaging and exam help clarify. NCBI

15) What is the long-term outlook?
Most babies with isolated, small ACC do very well with simple care. Outcomes depend on size, depth, location, and any associated syndromes. DermNet®

Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, geological location, weather and previous medical  history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. Regular check-ups and awareness can help to manage and prevent complications associated with these diseases conditions. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. We always try to ensure that the content is regularly updated to reflect the latest medical research and treatment options. Thank you for giving your valuable time to read the article.

The article is written by Team RxHarun and reviewed by the Rx Editorial Board Members

Last Updated: September 20, 2025.

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