Vaginal bleeding in women is a common clinical symptom with many causes, which can be divided into two categories: physiological and pathological. 1. Physiological causes: Physiological causes are mainly seen in menstruation and the rupture of the hymen during the first sexual intercourse, etc. If there is less bleeding and bright red color between two periods, it is probably ovulatory bleeding. All of the above are normal phenomena and generally do not require special treatment, as long as you do a good job of cleaning and pay attention to hygiene; 2. Pathological causes: there are more disease factors, including ovarian endocrine dysfunction, cervical polyps, endometritis, endometriosis, cervical cancer or miscarriage in pregnant women, ectopic pregnancy, gravida, etc., which can lead to bleeding below, and should be promptly referred to a doctor to clarify the cause and then Treatment. If it is a uterine lesion, medication, surgery, chemotherapy, etc. can be applied under the guidance of a doctor to control the development of the disease. If it is preterm miscarriage, the fetal development should be observed by ultrasound examination and consideration should be given to fetal preservation treatment or timely delivery. If the fetus stops developing, the pregnancy should be terminated by uterine evacuation surgery to avoid residual embryonic tissue in the uterine cavity causing uterine infection.