The main reason for the stomach pain is abdominal pain, accompanied by vaginal bleeding, mainly consider and menstrual flow, drug influence, abnormal pregnancy, gynecological inflammation and other reasons, it is recommended to go to the hospital for treatment, maintain a stable mood during the treatment process, and promote the recovery of the disease. 1, menstrual flow: during menstruation, the prostaglandin content in the body increases, stimulating the uterus contraction, accelerate the discharge of menstrual blood, at this time some women can feel pain in the abdominal area The most important thing is that you can feel the pain in the abdominal area, and serious people can have nausea, vomiting and other symptoms. At this time, the patient can use a warm water bag hot compress on the abdomen to accelerate blood circulation and relax the muscles to relieve pain. Severe pain can be taken under the guidance of a doctor ibuprofen pain relief; 2, drug effects: emergency contraceptives contain a large number of hormones to inhibit ovulation, so that the endometrium overgrowth. When the effect of the drug stops, the endometrium is shed in large quantities and the contractions intensify, leading to withdrawal bleeding and abdominal pain and other symptoms, which can lead to ovarian endocrine dysfunction in serious cases. At this time, patients can carry out fetal preservation treatment, while paying attention to bed rest and avoiding exertion; 4, gynecological inflammation: such as pelvic inflammatory disease, vaginitis, endometritis, etc., due to repeated stimulation of germs, so that the female reproductive tract inflammation infection, resulting in patients with abdominal pain, bleeding and other symptoms. Patients should take antibiotics for treatment under the guidance of professional doctors. Patients should pay attention to keep the vulva clean, but should avoid using soap, shower gel and other cleaning products; 5, other: cervical polyps, genital tumors and other diseases can also lead to abdominal pain, bleeding and other symptoms, the cause needs to be clarified and surgical or chemical drug treatment should be taken.