Menstruation usually refers to menstruation, two menstrual periods only 19 days apart is usually not normal, and then also need to clarify the appearance of abnormal bleeding or menstrual flow, may be related to the body’s hormone level abnormalities, recent external influences or organic diseases and other factors, it is recommended to pay attention to timely. Menstruation is the process of cyclical shedding of the uterine lining in women, usually women’s menstrual cycle is 21~35 days, due to the recent mental condition and emotional stress, may make the time of menstruation fluctuation, usually within 7 days is normal. Menstruation only 19 days apart may be related to abnormal hormone levels, when hormone levels fluctuate or are out of whack, it may cause the body to experience such conditions. In addition, recent external factors such as high mood swings, overeating, excessive dieting, cervical or endometrial lesions may also lead to this condition, which should be emphasized in a timely manner. If a woman’s menstrual cycle is only 19 days apart without any relief, or accompanied by other symptoms, she should go to the hospital in a timely manner to consult a doctor to identify the cause and then give targeted treatment.