Dietary factors, medications, and menstrual disorders may be involved in the condition of heavy menstrual flow. 1. Dietary factors: The condition of heavy menstruation may be related to the consumption of cold food during menstruation, such as ice cream, cold drinks, etc., which may cause stagnation of the blood, which accumulates in the uterine cavity and cannot be discharged out of the body smoothly. This kind of patients will have the possibility of having a large amount of menstruation when the period is almost clean. 2. Drugs: Some patients take aspirin and other blood-activating drugs when their menstrual period is about to be cleared, which may cause an increase in blood circulation, resulting in the symptom of heavy menstruation after the period is almost cleared. 3. Irregular menstruation: When there are changes in estrogen levels in the body, it may disturb the normal menstruation, manifesting as shortened menstrual cycle, prolonged menstrual cycle, irregular menstruation, increased menstrual flow, decreased menstrual flow, amenorrhea, etc., and of course, it may also appear as the phenomenon of the amount of menstruation getting heavier when it is almost clean. It is recommended that women with the above symptoms should cooperate with their doctors as soon as possible to clarify the causes, and then do the corresponding treatment and therapy.