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Vitamin B-12 - Mayo Clinic

2025年8月13日 · Having seriously low vitamin B-12 levels, called vitamin B-12 deficiency, isn’t common in the U.S. People who follow a vegetarian or vegan diet can sometimes have low levels. This is …

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Anemia - Symptoms and causes - Mayo Clinic

2026年5月5日 · They include: Iron deficiency anemia. Too little iron in the body causes this most common type of anemia. Bone marrow needs iron to make hemoglobin. Without enough iron, the …

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Ferritin test - Mayo Clinic

2023年12月19日 · Ferritin is a blood protein that contains iron. This test can be used to find out how much iron the body stores. If a ferritin test shows that the blood ferritin level is low, it means the …

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Anemia - Diagnosis and treatment - Mayo Clinic

2026年5月5日 · Treatment Anemia treatment depends on the cause. Iron deficiency anemia. Treatment for this form of anemia usually involves taking iron supplements and changing the diet. If the cause of …

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7 fingernail problems not to ignore - Mayo Clinic

2023年6月30日 · Spoon nails Spoon nails are soft nails turned up around the edges. This condition also is called koilonychia. Spoon nails often are a symptom of iron deficiency anemia. Or they may be due …

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Thrombocytosis - Symptoms and causes - Mayo Clinic

2026年5月22日 · Iron deficiency. Removal of your spleen. Hemolytic anemia — a type of anemia in which your body destroys red blood cells faster than it produces them, often due to certain blood …

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Low hemoglobin count Causes - Mayo Clinic

2025年11月13日 · A low hemoglobin count on a blood test could be normal for you, or it could indicate that you have a condition that needs medical attention.