Vitamin B12 Deficiency Anemia

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 12 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.

Vitamin B12 deficiency anemia occurs when your body lacks enough vitamin B12 to produce healthy red blood cells. This can lead to a range of symptoms, from fatigue to nerve damage. Let's break down what this condition entails, its causes, symptoms, diagnostic tests, treatments, medications,...

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

Vitamin B12 deficiency anemia occurs when your body lacks enough vitamin B12 to produce healthy red blood cells. This can lead to a range of symptoms, from fatigue to nerve damage. Let's break down what this condition entails, its causes, symptoms, diagnostic tests, treatments, medications, surgeries, preventions, and when to seek medical attention. Types of Vitamin B12 Deficiency Anemia Pernicious Anemia: This type stems from...

Key Takeaways

  • This article explains Causes of Vitamin B12 Deficiency Anemia in simple medical language.
  • This article explains Symptoms of Vitamin B12 Deficiency Anemia in simple medical language.
  • This article explains Diagnostic Tests for Vitamin B12 Deficiency Anemia in simple medical language.
  • This article explains Non-Pharmacological Treatments for Vitamin B12 Deficiency Anemia 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.

  • Fever with very low white blood cells or known immune suppression.
  • Unusual bruising, persistent bleeding, black stools, or severe weakness.
  • Shortness of breath, fainting, confusion, or rapidly worsening fatigue.
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.

Vitamin B12 deficiency anemia occurs when your body lacks enough vitamin B12 to produce healthy red blood cells. This can lead to a range of symptoms, from fatigue to nerve damage. Let’s break down what this condition entails, its causes, symptoms, diagnostic tests, treatments, medications, surgeries, preventions, and when to seek medical attention.

Types of Vitamin B12 Deficiency Anemia

  1. Pernicious Anemia: This type stems from a lack of intrinsic factor, a protein necessary for absorbing vitamin B12 in the intestines.
  2. Dietary Deficiency Anemia: Occurs when you don’t consume enough vitamin B12 through your diet.

Causes of Vitamin B12 Deficiency Anemia

  1. Poor Diet: Not eating enough foods rich in vitamin B12 like meat, fish, eggs, and dairy products.
  2. Gastrointestinal Disorders: Conditions like celiac disease, Crohn’s disease, or bacterial overgrowth in the small intestine can interfere with vitamin B12 absorption.
  3. Pernicious Anemia: An autoimmune condition where the body attacks cells in the stomach responsible for producing intrinsic factor.
  4. Surgery: Certain surgeries like those involving the removal of parts of the stomach or intestines can affect vitamin B12 absorption.
  5. Medication: Long-term use of certain medications like proton pump inhibitors or metformin can inhibit absorption.
  6. Age: Older adults may have decreased production of stomach acid, which is necessary for vitamin B12 absorption.
  7. Vegetarian or Vegan Diet: These diets may lack sufficient vitamin B12 unless supplemented.
  8. Atrophic Gastritis: 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 of the stomach lining can hinder vitamin B12 absorption.
  9. Genetic Factors: Rare genetic conditions can affect the absorption or processing of vitamin B12.
  10. Alcoholism: Excessive alcohol consumption can interfere with the absorption of vitamin B12.
  11. Malabsorption Syndromes: Conditions like sprue or tropical sprue can disrupt nutrient absorption.
  12. Parasitic Infections: Certain parasites can interfere with vitamin B12 absorption in the intestines.
  13. Intrinsic Factor Antibodies: Some individuals develop antibodies that attack intrinsic factor, preventing its function.
  14. Gastric Bypass Surgery: This surgical procedure can reduce the amount of stomach available for vitamin B12 absorption.
  15. Strict Dieting: Severely restricted diets may not provide enough vitamin B12.
  16. H. pylori Infection: This bacterial infection can cause 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 in the stomach lining, impacting vitamin B12 absorption.
  17. Intestinal Surgery: Procedures that involve parts of the intestine where vitamin B12 is absorbed can lead to deficiency.
  18. Pancreatic Disorders: Diseases like pancreatic cancer or pancreatitis can affect vitamin B12 absorption.
  19. Celiac Disease: An autoimmune disorder that affects the small intestine’s ability to absorb nutrients, including vitamin B12.
  20. Chronic Kidney Disease: Impaired kidney function can disrupt vitamin B12 metabolism.

Symptoms of Vitamin B12 Deficiency Anemia

  1. Fatigue: Feeling unusually tired or weak, even after getting enough rest.
  2. Weakness: Difficulty performing daily tasks due to muscle weakness.
  3. Shortness of Breath: Breathlessness even with minimal exertion.
  4. Pale Skin: Skin may appear noticeably paler than usual.
  5. Dizziness: Feeling lightheaded or dizzy, especially when standing up quickly.
  6. Numbness or Tingling: Sensations of pins and needles in the hands or feet.
  7. Difficulty Walking: Unsteady gait or difficulty maintaining balance.
  8. Memory Problems: Forgetfulness or difficulty concentrating.
  9. Mood Changes: Irritability, depression, or anxiety.
  10. Constipation: Difficulty passing stools.
  11. Loss of Appetite: Decreased desire to eat.
  12. Weight Loss: Unexplained weight loss over time.
  13. Soreness of Mouth or Tongue: Mouth ulcers or a sore, red tongue.
  14. Vision Changes: Blurred or disturbed vision.
  15. Heart Palpitations: Awareness of your heartbeat or irregular heartbeats.
  16. Brittle Nails: Nails that become thin or brittle.
  17. Hair Changes: Thinning or loss of hair.
  18. Jaundice: Yellowing of the skin or eyes.
  19. Restless Legs Syndrome: Uncomfortable sensations in the legs, especially at night.
  20. Impaired Balance: Difficulty maintaining balance while standing or walking.

Diagnostic Tests for Vitamin B12 Deficiency Anemia

  1. Complete Blood Count (CBC): Measures the number of red blood cells and their size.
  2. Serum Vitamin B12 Test: Determines the level of vitamin B12 in the blood.
  3. Homocysteine Test: Elevated levels may indicate vitamin B12 deficiency.
  4. Methylmalonic Acid (MMA) Test: High levels suggest vitamin B12 deficiency.
  5. Intrinsic Factor Antibody Test: Identifies antibodies that attack intrinsic factor.
  6. Schilling Test: Measures the absorption of vitamin B12 in the digestive tract.
  7. Bone Marrow Examination: Detects abnormalities in red blood cell production.
  8. Gastric Biopsy: Samples of stomach tissue may reveal signs of pernicious anemia.
  9. Folate Level Test: Checks for deficiencies in folate, which can mimic vitamin B12 deficiency symptoms.
  10. Stool Test for Occult Blood: Detects hidden blood in the stool, which may indicate gastrointestinal bleeding.
  11. Thyroid Function Tests: Thyroid disorders can contribute to anemia symptoms.
  12. Electrocardiogram (ECG): Assesses heart function, especially if anemia is severe.
  13. Upper Endoscopy: Allows visualization of the upper gastrointestinal tract for signs of malabsorption.
  14. MRI or CT Scan: Imaging tests can identify structural abnormalities in the gastrointestinal tract.
  15. Hematocrit Test: Measures the proportion of blood volume occupied by red blood cells.
  16. Peripheral Blood Smear: Examines blood under a microscope for abnormalities in red blood cells.
  17. Gastric Analysis: Measures stomach acid levels to assess intrinsic factor function.
  18. Gastrointestinal Transit Study: Evaluates how quickly food moves through the digestive system.
  19. X-Rays: Can reveal structural issues in the stomach or intestines.
  20. Neurological Examination: Assesses nerve function, as vitamin B12 deficiency can lead to neurological symptoms.

Non-Pharmacological Treatments for Vitamin B12 Deficiency Anemia

  1. Dietary Changes: Increase consumption of foods rich in vitamin B12, such as meat, fish, eggs, and dairy products.
  2. Supplements: Take vitamin B12 supplements orally or via injections, as prescribed by a healthcare provider.
  3. Intramuscular Injections: Administer vitamin B12 injections for individuals with severe deficiency or malabsorption issues.
  4. Intranasal Therapy: Use nasal spray forms of vitamin B12 for those who cannot absorb it orally.
  5. Sublingual Supplements: Dissolve vitamin B12 tablets under the tongue for better absorption.
  6. Intravenous Therapy: Infuse vitamin B12 directly into the bloodstream for rapid replenishment.
  7. Folate Supplementation: Ensure an adequate intake of folate, which works synergistically with vitamin B12.
  8. Iron Supplementation: Address concurrent iron deficiency if present, as it can exacerbate anemia symptoms.
  9. Avoidance of Alcohol: Minimize or eliminate alcohol consumption, as it can interfere with vitamin B12 absorption.
  10. Smoking Cessation: Quit smoking, as tobacco can impair nutrient absorption.
  11. Regular Exercise: Engage in physical activity to improve blood circulation and overall health.
  12. Stress Management: Practice stress-reduction techniques like meditation or yoga to support healing.
  13. Adequate Sleep: Ensure sufficient restorative sleep each night to promote healing and recovery.
  14. Hydration: Drink plenty of water to support overall health and blood volume.
  15. Balanced Diet: Consume a variety of nutrient-rich foods to support overall nutritional status.
  16. Regular Medical Follow-up: Attend scheduled appointments with healthcare providers for monitoring and treatment adjustments.
  17. Education: Learn about the importance of vitamin B12 and dietary sources to maintain long-term health.
  18. Meal Planning: Plan meals that include vitamin B12-rich foods to ensure adequate intake.
  19. Support Groups: Seek support from others dealing with similar health challenges for emotional support and guidance.
  20. Medical Alert Bracelet: Wear a medical alert bracelet if diagnosed with severe vitamin B12 deficiency to alert healthcare providers in emergencies.
  21. Home Monitoring: Track symptoms and dietary intake at home to monitor progress and identify any changes.
  22. Sunlight Exposure: Spend time outdoors to promote vitamin D synthesis, which supports overall health.
  23. Probiotic Supplements: Consider probiotics to support gastrointestinal health and nutrient absorption.
  24. High-Fiber Diet: Consume fiber-rich foods to support digestive health and regular bowel movements.
  25. Portion Control: Practice moderation in food intake to maintain a healthy weight and prevent nutrient deficiencies.
  26. Regular Dental Care: Maintain good oral hygiene to prevent mouth sores and infections.
  27. Heat Therapy: Apply heat packs to alleviate muscle pain or discomfort associated with neuropathy.
  28. Cold Therapy: Use cold packs to reduce inflammation and swelling in sore muscles or joints.
  29. Occupational Therapy: Seek guidance from an occupational therapist to adapt daily activities to physical limitations.
  30. Assistive Devices: Use assistive devices like canes or walkers if mobility is impaired due to weakness or balance issues.

Drugs Used in the Treatment of Vitamin B12 Deficiency Anemia

  1. Cyanocobalamin: Synthetic form of vitamin B12 available in oral, injectable, and nasal spray forms.
  2. Hydroxocobalamin: Injectable form of vitamin B12 often used in severe deficiencies.
  3. Methylcobalamin: Active form of vitamin B12 used in some supplements.
  4. Folic Acid: Supplemental form of folate often prescribed alongside vitamin B12.
  5. Iron Supplements: Address concurrent iron deficiency if present.
  6. Proton Pump Inhibitors (PPIs): Manage gastrointestinal conditions that may contribute to malabsorption.
  7. Metformin: Adjust medication dosage or consider alternative therapies if metformin is contributing to deficiency.
  8. Antacids: Manage symptoms of gastrointestinal reflux that may be exacerbated by vitamin B12 deficiency.
  9. Anti-Inflammatory Medications: Alleviate pain or inflammation associated with neuropathy.
  10. Antidepressants: Manage mood disturbances associated with vitamin B12 deficiency.
  11. Antibiotics: Treat bacterial overgrowth in the small intestine that may contribute to malabsorption.
  12. Antiemetics: Manage nausea or vomiting associated with severe deficiency or treatment.
  13. Analgesics: Alleviate pain associated with neuropathy or muscle weakness.
  14. Steroids: Manage inflammation associated with autoimmune conditions like pernicious anemia.
  15. Laxatives: Address constipation that may occur due to vitamin B12 deficiency or related medications.
  16. Antidiarrheals: Manage diarrhea that may occur as a side effect of vitamin B12 supplements.
  17. Anticonvulsants: Manage neuropathic pain or seizures associated with severe deficiency.
  18. Antihistamines: Alleviate itching or skin reactions associated with allergies or dermatitis.
  19. Antianginal Medications: Manage chest pain associated with severe anemia or cardiovascular complications.
  20. Vitamin Supplements: Provide additional vitamins or minerals as needed to support overall health and recovery.

Surgeries for Vitamin B12 Deficiency Anemia

  1. Gastric Bypass Reversal: Reversal of gastric bypass surgery to restore normal gastrointestinal anatomy.
  2. Gastrectomy Reversal: Reversal of partial or total gastrectomy to restore normal stomach function.
  3. Intestinal Resection: Surgical removal of diseased portions of the intestine to improve nutrient absorption.
  4. Intrinsic Factor Replacement: Experimental procedures to replace dysfunctional intrinsic factor-producing cells.
  5. Feeding Tube Placement: Insertion of a feeding tube to bypass the digestive tract and deliver nutrients directly into the bloodstream.
  6. Colon Resection: Surgical removal of diseased portions of the colon that may contribute to malabsorption.
  7. Endoscopic Procedures: Minimally invasive procedures to treat gastrointestinal conditions contributing to malabsorption.
  8. Stoma Revision: Surgical revision of a stoma to improve nutrient absorption in individuals with ostomies.
  9. Liver Transplant: Treatment for advanced liver disease that may contribute to malabsorption.
  10. Bone Marrow Transplant: Experimental treatment for severe vitamin B12 deficiency with associated bone marrow abnormalities.

Preventive Measures for Vitamin B12 Deficiency Anemia

  1. Balanced Diet: Consume a varied diet rich in vitamin B12 and other nutrients.
  2. Regular Medical Check-ups: Monitor overall health and nutritional status with routine medical exams.
  3. Supplementation: Take vitamin B12 supplements as needed, especially for individuals at risk of deficiency.
  4. Education: Learn about the importance of vitamin B12 and sources of dietary intake.
  5. Avoidance of Alcohol Abuse: Limit alcohol consumption to reduce the risk of deficiency.
  6. Smoking Cessation: Quit smoking to improve overall health and nutrient absorption.
  7. Early Treatment of Gastrointestinal Disorders: Manage gastrointestinal conditions promptly to prevent malabsorption.
  8. Genetic Counseling: Seek genetic counseling for individuals with a family history of vitamin B12-related disorders.
  9. Prenatal Care: Ensure adequate intake of vitamin B12 during pregnancy to support fetal development.
  10. Lifestyle Modifications: Maintain a healthy lifestyle with regular exercise, stress management, and adequate sleep to support overall health.

When to See a Doctor for Vitamin B12 Deficiency Anemia

It’s essential to seek medical attention if you experience any symptoms of vitamin B12 deficiency anemia, especially if they persist or worsen over time. Additionally, consider consulting a healthcare provider if you:

  • Experience fatigue, weakness, or shortness of breath that interferes with daily activities.
  • Notice changes in mood, memory, or concentration.
  • Develop numbness, tingling, or weakness in the hands or feet.
  • Experience unexplained weight loss or appetite changes.
  • Have a history of gastrointestinal disorders or autoimmune conditions.
  • Are pregnant or planning to become pregnant and have concerns about vitamin B12 intake.
  • Notice any unusual changes in skin, hair, or nail health.
  • Have a family history of vitamin B12 deficiency or pernicious anemia.
  • Take medications known to interfere with vitamin B12 absorption.
  • Are undergoing treatments or procedures that may affect vitamin B12 levels, such as weight loss surgery.

Early detection and treatment can help prevent complications and improve overall health and quality of life. Your healthcare provider can perform diagnostic tests, provide personalized treatment recommendations, and offer guidance on lifestyle modifications to manage vitamin B12 deficiency anemia effectively.

 

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. 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. Thank you for giving your valuable time to read the article.

 

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: Emergency care / cardiology / medicine doctor
Tests to discuss with doctor
  • ECG as early as possible when chest pain suggests heart risk
  • Troponin or cardiac blood tests if doctor suspects heart attack
  • Blood pressure, oxygen level, chest examination, and other tests as advised urgently
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?
  • Is this heart-related, and do I need emergency observation?

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: Vitamin B12 Deficiency Anemia

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.

References

Add references, clinical guidelines, textbooks, journal articles, or trusted medical sources here. You can edit this area from the RX Article Professional Blocks panel.

More from this topic
  1. Congenital Epstein–Barr Virus Infection

    Congenital? Epstein–Barr virus infection? means a baby is thought to get Epstein–Barr virus, or EBV, before birth while still inside the mother’s womb. EBV is also...

    April 4, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  2. Mother-to-Child Transmission of Enterovirus Infection

    Mother-to-child transmission of enterovirus infection? means an enterovirus infection? passes from a pregnant mother to her baby before birth, during labor, at the time of delivery,...

    April 4, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  3. Congenital Enterovirus Infectious Disease

    Congenital? enterovirus infectious disease means an enterovirus infection? that is already present in the baby before birth or becomes apparent at birth or in the first...

    April 4, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  4. Congenital Enterovirus Infection

    Congenital? enterovirus infection? means a baby is infected with an enterovirus before birth or around the time of birth from the mother. In very simple words,...

    April 3, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  5. Congenital Enterocyte Heparan Sulfate Deficiency

    Congenital? enterocyte heparan sulfate deficiency is a real but ultra-rare genetic intestinal disease. It causes the small-intestine lining cells, called enterocytes, to lack heparan sulfate on...

    April 3, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  6. Congenital Dyserythropoietic Anemia Type 4

    Congenital? dyserythropoietic anemia? type 4, often called CDA type IV, is a very rare inherited red blood cell disorder linked to KLF1 dysfunction. In this disease,...

    April 1, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  7. Congenital Dyserythropoietic Anemia

    Congenital? dyserythropoietic anemia?, or CDA, is a rare inherited blood disease. In this disease, the bone marrow makes red blood cells in an abnormal way. Many...

    April 1, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  8. Congenital Dyshaematopoietic Anemia

    Congenital? dyshaematopoietic anemia? is more commonly called congenital? dyserythropoietic anemia?, or CDA. It is a rare inherited blood disorder. In this disease, the bone marrow makes...

    April 1, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  9. Congenital Dyserythropoietic Anemia

    Congenital? dyserythropoietic anemia?, often called CDA, is a rare inherited blood disorder. In this disease, the bone marrow makes red blood cells in an abnormal way....

    April 1, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)
  10. Carbohydrate-Deficient Glycoprotein Syndrome Type IE

    Carbohydrate-deficient glycoprotein syndrome type Ie is an old name for DPM1-congenital? disorder of glycosylation, often written as DPM1-CDG. It is a very rare inherited metabolic disease....

    April 1, 2026 • Rx Blood, Metabolism, and Infectious Diseases (A - Z)