Stomach pain 4 days after abortion, like menstrual cramps, belongs to the abnormal situation, may be due to incomplete abortion, endometritis, pelvic inflammatory disease and other reasons, should be clear cause of the disease and then carry out appropriate treatment. Common causes and treatments 1, incomplete abortion: If the abortion fails to completely clean up the embryonic tissues in the uterus, it can lead to incomplete abortion, which is mainly manifested as pain in the lower abdomen like menstrual cramps, and can also be accompanied by vaginal bleeding. You should go to the hospital in time to improve the ultrasound examination to determine whether there is any residual material in the uterine cavity, and if necessary, you can carry out a purging operation to remove the residual material in the uterus; 2, endometritis: if you don’t pay attention to your personal hygiene after abortion, it can lead to the bacteria traveling upward along the vagina, cervix, or down along the fallopian tubes, and then arrive at the endometrium through the lymph system, which will cause inflammatory changes in the endometrial structure, and the patient can have pain in the abdomen, which may be accompanied with a small amount of vaginal bleeding, which can be prescribed by a doctor. Vaginal bleeding, can be given antibiotic anti-inflammatory treatment as prescribed by the doctor; 3, pelvic inflammatory disease: after abortion, the patient’s blood or tissue fluid into the pelvic cavity, easy to lead to pelvic infection, the patient may appear in the lower abdominal pain, can be given antibiotic anti-inflammatory treatment as prescribed by the doctor. Precautions after abortion patients need to pay attention to personal hygiene, regular replacement of underwear, keep the perineum dry, clean, to avoid bacterial infection caused by discomfort.