Anemia - B12 deficiency

Macrocytic anemia

Treatment depends on the specific cause of B12 deficiency anemia.

Pernicious anemia requires lifelong vitamin B12 injections. Those with anemia due to a lack of vitamin B12 may be told to take vitamin supplements and to follow a more balanced diet. It may be treated initially with vitamin B12 injections.

Anemia caused by malabsorption is treated with vitamin B12 injections until the condition improves.

Treatment for this form of anemia is usually effective.

• The signs and symptoms related to the central nervous system may be irreversible if treatment is not begun within 6 months of when these symptoms begin.
• Vitamin B12 affects epithelial cells (cells that form the outer surface of the body and line inner passageways). Therefore, a lack of B12 may cause a false-positive Pap smear.

Call your health care provider if you have any of the symptoms of anemia.