For both men and women, the more common causes of abdominal drop and back pain are inflammation of the small intestine, or inflammation of the colon. For women, if there is a drop in the abdomen and soreness, the more common cause of pelvic inflammatory disease or menstruation, gynecological inflammation will appear this situation. If there is a drop in the abdomen and back pain, must promptly check the leukorrhea and uterine adnexa, or ultrasound of the urinary tract to clarify. At the same time, observe the situation of the stool, if the stool is combined with pus ball or white blood cells, etc., need to timely apply antibiotics to carry on the treatment, consider the possibility of colitis is more likely.