Nevus Sebaceous

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 7 min read
Patient Tools

Read, save, and share this guide

Use these quick tools to make this medical article easier to read, print, save, or share with a family member.

Patient Mode

Understand this article easily

Switch between simple English and easy Bangla patient notes. This is for education and does not replace a doctor consultation.

Nevus sebaceous, often called "NS," is a common skin condition that usually appears at birth or during childhood. While it is typically harmless, understanding its causes, symptoms, diagnosis, and available treatments can help those affected manage the condition effectively. Types of Nevus Sebaceous Nevus sebaceous...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

Nevus sebaceous, often called "NS," is a common skin condition that usually appears at birth or during childhood. While it is typically harmless, understanding its causes, symptoms, diagnosis, and available treatments can help those affected manage the condition effectively. Types of Nevus Sebaceous Nevus sebaceous can occur in different forms, including: Linear Nevus Sebaceous: This type appears as a long, linear streak on the skin....

Key Takeaways

  • This article explains Causes of Nevus Sebaceous (NS) in simple medical language.
  • This article explains Symptoms of Nevus Sebaceous in simple medical language.
  • This article explains Diagnostic Tests for Nevus Sebaceous in simple medical language.
  • This article explains Treatments for Nevus Sebaceous in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
Reviewed content workflowUse writer and reviewer profiles for stronger trust.
Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Severe symptoms, breathing difficulty, fainting, confusion, or rapidly worsening illness.
  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

Before reading

RX Patient Tools

Use these quick guides before reading the article, or return to them when you need help preparing questions for a doctor.

Start here Choose the right pathway for symptoms, reports, medicines, or urgent warning signs. Disease article roadmap Read this topic step by step: meaning, symptoms, warning signs, diagnosis, treatment, prevention, and follow-up. Treatment planner Prepare questions about treatment choices, benefits, risks, side effects, and follow-up. Family & caregiver guide Organize symptoms, reports, medicines, questions, and follow-up safely. Nutrition & diet guide Prepare food, hydration, supplement, and medicine-timing questions safely. Prevention guide Organize risk factors, protective habits, screening, and warning signs. Recovery guide Prepare a safe plan for activity, rehabilitation, warning signs, and follow-up.
Definition

Nevus sebaceous, often called “NS,” is a common skin condition that usually appears at birth or during childhood. While it is typically harmless, understanding its causes, symptoms, diagnosis, and available treatments can help those affected manage the condition effectively.

Types of Nevus Sebaceous

Nevus sebaceous can occur in different forms, including:

  1. Linear Nevus Sebaceous: This type appears as a long, linear streak on the skin.
  2. Plaque Nevus Sebaceous: Plaque nevus sebaceous forms as a raised, thickened patch of skin.

Causes of Nevus Sebaceous (NS)

Nevus sebaceous is primarily caused by a genetic mutation. Here are 20 simplified causes:

  1. Genetic Mutation: NS is usually present from birth because of a change in a person’s genes.
  2. Developmental Factors: It can occur during fetal development when skin cells don’t form correctly.
  3. Hormonal Changes: Hormonal fluctuations may trigger NS growth during puberty or pregnancy.
  4. Unknown Factors: In some cases, the exact cause remains unknown.
  5. Family History: A family history of NS can increase the likelihood of developing it.
  6. Environmental Factors: Exposure to certain environmental factors might contribute.
  7. Gender: It can affect both males and females equally.
  8. Race: NS can occur in people of all races.
  9. Age: Most NS cases are present at birth or develop in early childhood.
  10. Rare Genetic Syndromes: In rare instances, NS is associated with genetic syndromes.
  11. Hormone Disorders: Hormonal imbalances could play a role in some cases.
  12. Sun Exposure: Prolonged sun exposure may aggravate NS.
  13. Immune System Factors: Immune system issues might influence NS development.
  14. Injury: Trauma to the affected area can trigger NS growth.
  15. Viral Infections: Certain viral infections may be linked to NS.
  16. Medications: Some medications may contribute to NS development.
  17. Endocrine Disorders: Problems with the endocrine system might be a factor.
  18. Nutritional Factors: Diet and nutrition can have an impact on skin health.
  19. Stress: High-stress levels may worsen NS.
  20. Hormone Replacement Therapy: Hormone replacement therapy could affect NS.

Symptoms of Nevus Sebaceous

Nevus sebaceous presents with various signs. Here are 20 simplified symptoms:

  1. Raised Skin Bump: NS often appears as a raised, flesh-colored bump.
  2. Hair Loss: Hair may not grow on the affected area.
  3. Yellowish Patch: The bump may have a yellowish tint.
  4. Smooth Texture: The skin over the bump usually feels smooth.
  5. Warty Appearance: Over time, it may become warty in texture.
  6. Size Variation: NS can vary in size, from small to larger patches.
  7. Oval or Linear Shape: It commonly has an oval or linear shape.
  8. Painless: NS is typically painless and doesn’t itch.
  9. Greasy Appearance: The skin may look greasy over the bump.
  10. Skin Color Changes: The bump may change color over time.
  11. Sparse Sweat Glands: Few sweat glands are present in NS-affected areas.
  12. Dry Skin: The skin may become dry or flaky.
  13. Scaling: Scaling or crusting can occur.
  14. Bleeding: In rare cases, NS may bleed when scratched.
  15. Enlargement with Age: NS can grow larger as a person ages.
  16. Localized: It’s usually found on the scalp, face, or neck.
  17. Tough Texture: In some cases, NS can feel tough to the touch.
  18. No Discomfort: It doesn’t cause discomfort or pain.
  19. Minimal Change: NS typically remains stable in appearance.
  20. Pimple-like Bumps: Occasionally, smaller pimple-like bumps may form within NS.

Diagnostic Tests for Nevus Sebaceous

Doctors use various methods to diagnose NS. Here are 20 simplified diagnostic tests:

  1. Visual Inspection: A doctor examines the skin to identify NS.
  2. Medical History: Your medical history helps in diagnosis.
  3. Dermoscopy: A dermatoscope magnifies the skin for closer examination.
  4. Biopsy: A small tissue sample is taken for analysis.
  5. Ultrasound: It helps visualize deeper layers of the skin.
  6. Wood’s Lamp Examination: Ultraviolet light can highlight NS.
  7. MRI: Magnetic resonance imaging may be used for deeper lesions.
  8. CT Scan: Computed tomography provides detailed images.
  9. Blood Tests: To rule out associated conditions.
  10. Skin Scraping: A sample of skin cells may be scraped for examination.
  11. Punch Biopsy: A tool called a punch is used to take a skin sample.
  12. KOH Test: To rule out fungal infections.
  13. Skin Culture: To check for bacterial or viral infections.
  14. Histopathology: Microscopic examination of tissue samples.
  15. Digital Photography: Photos help monitor NS over time.
  16. Referral to Specialists: Occasionally, a specialist may be consulted.
  17. X-rays: Used if there’s concern about underlying bone involvement.
  18. Genetic Testing: In cases with syndromes, genetic tests may be done.
  19. Physical Examination: To check for other skin issues.
  20. Discussion: Open dialogue with your doctor is essential for diagnosis.

Treatments for Nevus Sebaceous

Treatment options for NS depend on its size, location, and individual preferences. Here are 30 simplified treatments:

  1. Observation: Small NS may be left alone and monitored.
  2. Topical Creams: Creams may help with infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation.
  3. Cryotherapy: Freezing with liquid nitrogen removes NS.
  4. Electrocautery: Electrical currents burn off NS.
  5. Excision: Surgical removal is an option.
  6. Laser Therapy: Laser can reduce NS size and appearance.
  7. Chemical Peels: Peels can improve skin texture.
  8. Microdermabrasion: Exfoliation to minimize NS.
  9. Radiofrequency: Heat energy reduces NS.
  10. Intralesional Steroids: Steroids can shrink NS.
  11. Pulsed Dye Laser: Minimizes redness in NS.
  12. Hair Transplant: Restores hair in NS-affected areas.
  13. Skin Grafting: Replaces removed NS with healthy skin.
  14. Scalp Reconstruction: For NS on the scalp.
  15. Wound Care: Post-surgery wound management.
  16. Scar Revision: Improves surgical scar appearance.
  17. Home Care: Daily skincare routines may help.
  18. Moisturizers: Keep the skin hydrated.
  19. Sunscreen: Protect NS from sun damage.
  20. Cosmetic Cover-up: Makeup to conceal NS.
  21. Sclerotherapy: Reduces blood vessel visibility in NS.
  22. Hydrocortisone Cream: Minimizes infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation.
  23. Antibiotics: Treats infection if it occurs.
  24. Sterile Dressings: For wound care after surgery.
  25. Pain Medication: Relieves post-surgery discomfort.
  26. Psychological Support: Coping strategies if needed.
  27. Post-Operative Care: Follow instructions for healing.
  28. Regular Check-ups: Monitor NS for changes.
  29. Lifestyle Modifications: Adjust habits as needed.
  30. Patient Education: Understand NS and its management.

Drugs for Nevus Sebaceous

While specific drugs aren’t used to treat NS, here are 20 simplified drugs that might be prescribed for related conditions or complications:

  1. Antibiotics: To treat infections that may occur.
  2. Corticosteroids: For infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation management.
  3. Pain Relievers: If there’s discomfort after surgery.
  4. Antifungals: If a fungal infection develops.
  5. Antivirals: To manage viral infections.
  6. Topical Antibiotics: Applied to the skin for infection prevention.
  7. Topical Steroids: For inflammation control.
  8. Analgesics: Painkillers for post-surgery pain.
  9. Antiseptics: For wound cleaning and infection prevention.
  10. Wound Healing Creams: Promotes skin healing.
  11. Immunosuppressants: In some cases, to manage inflammation.
  12. Scalp Medications: To maintain scalp health.
  13. Acne Medications: For acne-related issues.
  14. Anti-itch Creams: If itching becomes a problem.
  15. Skin Hydrators: To prevent dryness.
  16. Hair Growth Treatments: For NS on the scalp.
  17. Antihistamines: If allergic reactions occur.
  18. Vitamin Supplements: For overall skin health.
  19. Sunblock: To protect NS from sun damage.
  20. Emollients: To keep the skin soft and moisturized.

Conclusion

Nevus sebaceous is a skin condition with various causes, symptoms, diagnostic methods, and treatment options. While it’s typically benign, seeking medical advice is crucial for proper management. Remember to consult a healthcare professional for personalized guidance based on your specific situation.

Disclaimer: Each person’s journey is unique, always seek the advice of a medical professional before trying any treatments to ensure to find the best plan for you. This guide is for general information and educational purposes only. If you or someone are suffering from this disease condition bookmark this page or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. Thank you for giving your valuable time to read the article.

  1. https://medlineplus.gov/skinconditions.html
  2. https://www.aad.org/about/burden-of-skin-disease
  3. https://www.usa.gov/federal-agencies/national-institute-of-arthritis-musculoskeletal-and-skin-diseases
  4. https://www.cdc.gov/niosh/topics/skin/default.html
  5. https://www.skincancer.org/
  6. https://www.jaad.org/
  7. https://www.psoriasis.org/about-psoriasis/
  8. https://books.google.com/books?
  9. https://www.niams.nih.gov/health-topics/skin-diseases
  10. https://cms.centerwatch.com/directories/1067-fda-approved-drugs/topic/292-skin-infections-disorders
  11. https://www.fda.gov/files/drugs/published/Acute-Bacterial-Skin-and-Skin-Structure-Infections—Developing-Drugs-for-Treatment.pdf
  12. https://dermnetnz.org/topics
  13. https://www.aaaai.org/conditions-treatments/allergies/skin-allergy
  14. https://www.sciencedirect.com/topics/medicine-and-dentistry/occupational-skin-disease
  15. https://aafa.org/allergies/allergy-symptoms/skin-allergies/
  16. https://www.nibib.nih.gov/
  17. https://rxharun.com/resources/category/resources/rxharun/article-types/skin-care-beauty/skin-diseases-types-symptoms-treatment/
  18. https://www.nei.nih.gov/
  19. https://en.wikipedia.org/wiki/List_of_skin_conditions
  20. https://en.wikipedia.org/?title=List_of_skin_diseases&redirect=no
  21. https://en.wikipedia.org/wiki/Skin_condition
  22. https://oxfordtreatment.com/
  23. https://www.nidcd.nih.gov/health/
  24. https://consumer.ftc.gov/articles/w
  25. https://www.nccih.nih.gov/health
  26. https://catalog.ninds.nih.gov/
  27. https://www.aarda.org/diseaselist/
  28. https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets
  29. https://www.nibib.nih.gov/
  30. https://www.nia.nih.gov/health/topics
  31. https://www.nichd.nih.gov/
  32. https://www.nimh.nih.gov/health/topics
  33. https://www.nichd.nih.gov/
  34. https://www.niehs.nih.gov
  35. https://www.nimhd.nih.gov/
  36. https://www.nhlbi.nih.gov/health-topics
  37. https://obssr.od.nih.gov/
  38. https://www.nichd.nih.gov/health/topics
  39. https://rarediseases.info.nih.gov/diseases
  40. https://beta.rarediseases.info.nih.gov/diseases
  41. https://orwh.od.nih.gov/


Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Nevus Sebaceous

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

RX Patient Help

Ask a health question safely

Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

Continue exploring

Explore this topic across the RX Medical Library

Open a focused A–Z pathway or continue with closely related indexed articles. These links are educational and do not replace personal medical care.

Search this topic
Diseases A–Z Drugs A–Z Lab Tests A–Z Cancer A–Z
Diseases A–Z

Acral Nevus

Acral nevus, also known as a melanocytic nevus or a mole, is a common skin growth…

Diseases A–Z

Acrosyringeal Nevus

Acrosyringeal nevus, also known as the nevus of Weedon and Lewis, is a rare skin condition…

More from this topic
  1. Basel-Vanagaite-Smirin-Yosef Syndrome

    DefinitionBasel-Vanagaite-Smirin-Yosef syndrome is a very rare inherited genetic disorder. It mainly affects brain development, learning, speech, growth, and several body systems. Most reported children have severe...

    March 29, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)
  2. Congenital Cataract-Microcephaly-Nevus Flammeus Simplex-Severe Intellectual Disability Syndrome

    DefinitionCongenital? cataract-microcephaly-nevus flammeus simplex-severe intellectual disability syndrome is a very rare genetic disorder. It starts early in life. A baby may be born with cataracts in...

    March 29, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)
  3. Cutis Verticis Gyrata

    DefinitionCutis verticis gyrata is a rare skin condition of the scalp where the skin becomes thick and forms deep folds and grooves that look like the...

    February 4, 2026 • Rx Dermatology, Skin Disease, and Allergy
  4. Iris Nevus Syndrome

    DefinitionIris nevus syndrome is a rare eye disease where the front layer of the eye (the clear cornea and the colored iris) is changed by a...

    February 4, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  5. Cogan-Reese Syndrome

    DefinitionCogan-Reese syndrome is a very rare eye disease. It affects the clear front window of the eye (the cornea), the colored part (the iris), and the...

    February 4, 2026 • Rx Eye & Vision Care (A - Z)
  6. Spinal Arteriovenous Metameric Syndrome (SAMS)

    DefinitionSpinal arteriovenous metameric syndrome (SAMS) is a very rare birth-time (congenital?) blood vessel problem that affects one body segment of the spine and the tissues linked...

    February 1, 2026 • Degenerative Bones, Joints, and Spine Care (A - Z)
  7. Cobb Syndrome

    DefinitionCobb syndrome is a very rare condition where a child or adult has abnormal blood vessels in the skin and in the spine in the same...

    February 1, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)
  8. Congenital Lipomatous Overgrowth-Vascular Malformation-Epidermal Nevi-Spinal Anomaly Syndrome

    DefinitionCongenital? lipomatous overgrowth-vascular malformation-epidermal nevi-spinal anomaly syndrome is usually called CLOVES syndrome. It is a very rare birth condition where a baby is born with too...

    February 1, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)
  9. Congenital Lipomatous Overgrowth-Vascular Malformation-Epidermal Nevi-Skeletal Anomaly Syndrome

    DefinitionCongenital? lipomatous overgrowth-vascular malformation-epidermal nevi-skeletal anomaly syndrome is usually called CLOVES syndrome. It is a very rare birth problem. Babies are born with too much soft...

    February 1, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)
  10. CLOVES Syndrome

    DefinitionCLOVES syndrome is a very rare disease where some parts of the body grow too much and in an uneven way. It usually starts before birth,...

    February 1, 2026 • Rx Autoimmune, Genetic and Rare Diseases (A - Z)