Menstrual disorders, cervicitis, endometriosis and other diseases may be caused by menstrual disorders, patients should consult a doctor in time to clarify the cause of the disease and then treat it. 1. Menstrual disorders: menstrual disorders are a common gynecological disease, patients will have menstrual cycle, menstrual period, the amount of abnormal menstruation, before and after the menstrual period, there will be abdominal pain, dizziness, fatigue, this kind of people should quit smoking and drinking, do not stay up all night, and when necessary, the use of progesterone and other medications for treatment. 2. Cervicitis: prolonged menstruation may also be caused by cervicitis, such patients will have increased leukorrhea with odor, vulvar itching, pain during sexual intercourse and other symptoms, you can use azithromycin, doxycycline and other drugs for treatment. 3. Endometriosis: prolonged menstruation may also be caused by endometriosis, and the patient will also have gradually aggravated dysmenorrhea, dyspareunia and other symptoms, and can be treated with drugs such as dienogest. In addition, the cause of prolonged menstruation can also be seen in endometrial polyps, cervical polyps, etc. It is recommended that patients with this symptom consult a doctor in time, under the guidance of the doctor to actively treat.