Hemolysis is hemolytic anemia. 1. Hemolysis is a process in which red blood cells are destroyed and their life span is shortened. When hemolysis exceeds the bone marrow’s ability to compensate, the resulting anemia is called hemolytic anemia and occurs at all ages. The mechanism of hemolysis is the destruction of red blood cells due to various causes, either intravascular or extravascular, with intravascular hemolysis being the most common. The diagnosis is based on clinical manifestations and laboratory tests. 2. Clinical manifestations include pain in the lower back and limbs, accompanied by headache, vomiting, chills, and possibly high fever, pallor and hemoglobinuria, jaundice, etc. In severe cases, peripheral circulation may be affected. In severe cases, peripheral circulatory failure and acute renal failure may occur. 3. Treatment mainly includes medication and surgery. Drugs include cephalosporins, quinolone antibiotics, prednisone and other glucocorticosteroids. Surgery is mainly splenectomy and hematopoietic stem cell transplantation. Once hemolysis occurs, go to the hospital in time for early diagnosis and treatment. Drugs need to be used under the guidance of doctors, avoid self-medication.