Dyspareunia after defecation is commonly caused by the following reasons: rectal tumor, proctitis, pelvic abscess and so on. 1. Rectal tumor: Rectal cancer is common, due to the stimulation effect of tumor, the peristalsis of rectum will be accelerated, which will be manifested as frequent urge to have bowel movement after defecation. 2. Proctitis: due to the stimulation effect of inflammation, the fluid secreted by rectum will increase, which will lead to the phenomenon of having the urge to have bowel movement even after defecation. 3. Pelvic abscess: When pelvic inflammatory disease or acute appendicitis occurs, there will be exudate in the pelvis, and abscess may be formed, which will cause irritation to the rectum and lead to the feeling of having a bowel movement even after defecation. It is recommended that the patient go to the hospital, can improve the ultrasound, stool routine, enteroscopy and other tests, usually can clarify the cause.