Pediatric hemolytic anemia

Haemolytic anaemias are a type of anemia that occurs when the destruction of red blood cells is accelerated by a variety of causes and the bone marrow hematopoietic function is insufficiently compensated. The life span of normal red blood cells is 110 to 120 days. Under normal circumstances, about 1% of senescent red blood cells are swallowed and destroyed in the spleen every day, replaced by new red blood cells to maintain a constant number of red blood cells in order to exert normal physiological functions. Normal children's bone marrow hematopoietic potential is great, and can generally increase to 6-8 times the normal. Therefore, for example, during mild hemolysis, the number of red blood cells in peripheral blood can be fully compensated by the increase in bone marrow hematopoietic function. At this time, although clinical hemolysis exists, anemia does not occur. This state is called compensatory hemolysis Sexually transmitted diseases. If the destruction of red blood cells exceeds the compensatory capacity of bone marrow hematopoiesis, hemolytic anemia occurs.