What causes low blood count?

The condition of low blood count is also known as Anemia.Many Disease and disorders can cause the fall in blood counts.There are some condition which cause low blood counts like Cancer, malnutrition,iron, folate, vitamin B12, vitamin B6 deficiencies,leukemia,hemolysis,hemorrhage,sickle cell anemia,multiple myeloma,pernicious anemia,hereditary spherocytosis,myelodysplastic syndrome,autoimmune hemolytic anemia, human immunodeficiency virus infection,bone marrow failure ,radiation, infection, tumor.

A low blood count may also take place after excessive blood loss as in case of some injury or some accident.