What is folate deficiency anemia?

What is folate deficiency anemia?

• A. Anemia caused by a deficiency of folate (Vitamin B9)
• B. Anemia caused by excess folate
• C. Anemia due to iron deficiency
• D. Anemia due to vitamin C deficiency

Answer: (A)

Folate deficiency anemia occurs when there isn’t enough folate (vitamin B9) to support DNA synthesis during rapid red blood cell production. Folate provides the one-carbon units needed to make thymidylate and purines, which are essential for DNA replication. Without it, developing erythroid cells can’t mature properly, so the bone marrow releases oversized, immature cells (megaloblasts) and the overall red cell production becomes inefficient. This leads to a macrocytic, often normochromic anemia with a high mean corpuscular volume and usually a blunted reticulocyte response. Clinically you may see fatigue and pallor, and one may note glossitis. Causes include poor intake, malabsorption, alcohol use, increased demand (such as pregnancy), or certain medications; treatment is folic acid supplementation and addressing the underlying cause. This condition is specifically due to deficiency of folate, not excess folate, iron, or vitamin C deficiency.

Folate deficiency anemia occurs when there isn’t enough folate (vitamin B9) to support DNA synthesis during rapid red blood cell production. Folate provides the one-carbon units needed to make thymidylate and purines, which are essential for DNA replication. Without it, developing erythroid cells can’t mature properly, so the bone marrow releases oversized, immature cells (megaloblasts) and the overall red cell production becomes inefficient. This leads to a macrocytic, often normochromic anemia with a high mean corpuscular volume and usually a blunted reticulocyte response. Clinically you may see fatigue and pallor, and one may note glossitis. Causes include poor intake, malabsorption, alcohol use, increased demand (such as pregnancy), or certain medications; treatment is folic acid supplementation and addressing the underlying cause. This condition is specifically due to deficiency of folate, not excess folate, iron, or vitamin C deficiency.