There are many reasons why a child’s period is not clean all the time, the common ones are mainly emotional influence, adolescent dysfunctional subbleeding, anemia, polycystic ovary syndrome, etc., need to clarify the cause and treat the symptoms. 1, emotional influence: emotional abnormalities, such as prolonged mental depression, sulking, stress, etc., will lead to the phenomenon of irregular menstruation, such as menstrual bleeding, long periods, etc. Daily attention should be paid to maintain emotional stability, adjust the mentality, optimistic and positive to face life, and timely channeling of bad emotions; 2. Adolescent dysfunctional daughter bleeding: irregular menstrual cycle can occur within two years after menarche, such as prolonged menstrual bleeding, excessive bleeding, etc. The diagnosis should be confirmed by estrogen and progesterone measurement and basal body temperature measurement at the hospital, and can be treated by Chinese medicine, such as oral administration of Zhi Bai Di Huang Wan, Yi Mu Paste, etc. Acupuncture therapy can also be used; 3, anemia: such as aplastic anemia can have insufficient platelets, resulting in symptoms of bleeding in multiple parts of the body that cannot be easily stopped, the diagnosis should be confirmed by routine blood tests and bone marrow aspiration at the hematology department in a timely manner, and hemostatic and antifibrinolytic drugs can be applied according to medical advice. 4. Polycystic ovary syndrome: often with irregular menstrual cycle and menstrual flow, accompanied by hirsutism, acne and other symptoms of endocrine disorders.