There are many causes of anemia, which can be divided into three categories

There are many causes of anemia, which can be divided into anemia with reduced erythropoiesis, anemia with excessive destruction of red blood cells, and hemorrhagic anemia. Patients are advised to go to the hematology department of the hospital in time for targeted treatment under the guidance of the doctor.

1. Anemia with reduced erythropoiesis

1. Iron deficiency: iron deficiency anemia is caused by insufficient intake or malabsorption of iron in the body, which can not meet the normal hematopoietic needs;

2. Folic acid and vitamin B12 deficiency: due to long-term partial eating or gastrointestinal diseases affecting the digestion and absorption of nutrients in food, the body is deficient in folic acid and vitamin B12, which in turn leads to megaloblastic anemia;

3. Abnormal bone marrow hematopoietic function: such as aplastic anemia, bone marrow hematopoietic function is inhibited due to various reasons, and enough red blood cells cannot be produced, resulting in anemia.

2. Anemia caused by excessive destruction of red blood cells

It is common in hemolytic diseases, such as autoimmune hemolytic anemia, globin dyspoietic anemia, hereditary spherocytosis, etc., due to the destruction of red blood cells, the life span is shortened, and the compensatory capacity of the bone marrow is exceeded.

3. Hemorrhagic anemia

1. Acute hemorrhage: massive hemorrhagic anemia may occur due to trauma, surgery and other factors that cause massive bleeding;

2. Chronic blood loss: If there are hemorrhoids, menorrhagia, etc., it may lead to chronic hemorrhagic anemia.

In addition to the above factors, it may also be related to leukemia, which can lead to hematopoietic stem cell failure and then anemia due to uncontrolled leukemia cell proliferation, differentiation disorders, and apoptosis blockage.