The first period after giving birth to a child is particularly heavy, may be the body’s sex hormone level changes caused by the normal performance, but most of them are not normal. After giving birth to a child for the first time to menstruation, the body estrogen, progesterone, prolactin and other hormone levels change significantly, may have a certain impact on the menstrual period when the uterine lining shedding may cause menstruation is particularly heavy, if not accompanied by other discomforts may also belong to the normal phenomenon of the more do not need to carry out special treatment. If accompanied by obvious panic, palpitations, chest tightness, dizziness, abdominal pain, etc., then it is necessary to further treatment, timely medical treatment, and active symptomatic treatment. Some women in the above situation may also have abnormal bleeding caused by miscarriage, endocrine disorders, abnormal uterine bleeding, uterine fibroids and other kinds of organic diseases, which need to be clearly identified with the normal menstrual flow increase caused by hormone level changes to avoid serious consequences. Therefore, to be on the safe side, when excessive menstrual flow occurs, one should consult a doctor promptly in order to rule out abnormalities and ensure life safety.