Aplastic anemia is a bone marrow hematopoietic failure disease, which shows a series of symptoms due to low bone marrow hematopoietic function: 1. anemia symptoms: patients show dizziness, weakness, panic and palpitations; 2. bleeding symptoms: light patients show blood oozing from gums when brushing teeth in the morning, and skin bleeding spots easily appear on limbs and other skin; 3. infection and fever symptoms: examination of peripheral blood routine shows leukopenia, due to leukocyte low blood count. The severity of symptoms of aplastic anemia is related to the length and duration of the disease. Heavy reoccurrence is usually manifested by obvious short-term bleeding hyperthermia and progressive anemia; non-heavy reoccurrence will show slow, insidious progressive development.