Most are brought about by some other disease. Some may be inherited. The majority are quite rare. The most common anemias result from deficiencies. It is more common in females than males.
Pernicious anemia affects males and females at about the same rate.
It is rarely found in people under 40, and its incidence increases with age. Sometimes anemia causes the heart to palpitate, or pound very fast. Because vitamin deficiencies can also injure the nervous system, they may cause numbness or tingling in the arms or legs. Other symptoms of vitamin-deficiency anemias include yellowish skin, abdominal pain, a swollen or burning tongue, or difficulties with balance or walking. These anemias can also affect the brain 's ability to reason and remember.