Right lower abdominal pain in men is most often seen in the following diseases: 1, the most common is appendicitis, appendicitis manifests itself as initial pain in the stomach area and around the umbilicus, shifting to pain in the right lower abdomen in 4-6 hours, and is fixed with a gradual increase in performance. 2, not excepting ureteral stones on the right side, due to stones slipping into the ureter after embedding in the second stenosis, causing fluid in the pelvis on the right side will cause pain in the right lower abdomen The right lower abdominal pain is sometimes accompanied by radiating pain to the perineum and symptoms such as hematuria, which should be seen by the hospital in time. 3. The presence of right lower abdominal pain should actively go to the hospital to find the cause and treat the symptoms.