Dragging and dribbling of menstruation may be caused by pregnancy, abnormalities of the corpus luteum, uterine diseases, endocrine disorders, abnormal pregnancies, sterilization rings, etc., which need to be treated according to the different causes with appropriate measures. 1. Pregnancy: If the above symptoms occur during pregnancy, it may be caused by preeclampsia or abnormal pregnancy causing a small amount of vaginal bleeding, which should be treated by a doctor in time to preserve the fetus. 2. Abnormalities of the corpus luteum: When the corpus luteum is abnormal, the above symptoms may occur, and oral or intramuscular injection of progesterone can be used to relieve the symptoms. 3. Uterine diseases: If you suffer from endometritis, uterine polyps, fibroids and other diseases that cause the above symptoms, you should follow the doctor’s advice to use medication or surgery to treat the primary disease. 4. Endocrine disorders: abnormal ovarian secretion function may cause uterine dysfunctional bleeding, and progesterone should be supplemented in time. 5. Birth control ring: If a woman has a birth control ring, it may produce a reaction of rejection, which may lead to the above symptoms, you can take medication to stop bleeding, or remove the ring. There are many causes of menstrual cramps, so it is recommended that patients go to regular hospitals to find out the causes of menstrual cramps under the guidance of doctors, so as to avoid delaying the condition.