Common factors for low menstrual flow include physiological factors such as near menopause and genetic factors, and pathological factors such as polycystic ovary syndrome and iron deficiency anemia. Physiological factors usually do not need special treatment; in case of polycystic ovary syndrome, medication can be used to regulate the menstrual cycle while reducing weight and eating a healthy diet; common medications for iron-deficiency anemia include iron dioxide granules and iron dextrose tablets. 1. Physiological factors: (1) Near menopause: Near menopause, the level of estrogen in the body decreases and the ovarian function declines, which will cause low menstrual flow; if the menstrual flow is regular and there is no combination of abnormalities, it usually doesn’t need to be dealt with. (2) Genetic factors: For low menstrual flow caused by hereditary factors, if the thickness of the uterine lining is normal and does not affect the chances of conception in the future, it usually does not need to be dealt with. 2. Pathologic factors: (1) polycystic ovary syndrome: it is necessary to actively treat the primary disease, in reducing weight, healthy diet, at the same time, can be applied to ethinyl estradiol cyproterone tablets, drospirenone ethinyl estradiol tablets, etc. to regulate the menstrual cycle, and metformin to correct metabolic abnormalities, so as to normalize menstruation. (2) Iron deficiency anemia: common medicines used in the treatment of iron deficiency anemia include iron dioxide granules, iron dextrose tablets, ferrous lactate tablets, ferrous fumarate tablets and so on. If you have symptoms of low menstrual flow, you should consult a doctor in time to clarify the cause of the disease and follow the doctor’s instructions to give targeted treatment to avoid delaying your condition.