Men’s lower right abdominal pain may be caused by physical factors such as strenuous exercise, nervous tension, or consider appendicitis, urinary stones and other diseases. 1. Physiological factors: if a man is strenuous exercise, nervousness, may lead to intestinal spasm, temporary lower right abdominal pain. This kind of situation is generally a normal phenomenon, do not need to worry too much. 2. Appendicitis: appendicitis may be caused by infection, pathogen infection, improper diet and other factors. Symptoms are metastatic lower right abdominal pain, which may be accompanied by anorexia, nausea, vomiting, diarrhea and other symptoms. 3. Urinary stones: kidney or ureteral stones on the right side can present with right lower abdominal pain. This is a pulling pain, and there is no lesion in the right lower abdomen itself. There are many other causes of lower right abdominal pain in men, such as prostatitis, right lower abdominal lymphadenitis, tumor, ascending colitis and so on. It is recommended that the patient go to the regular hospital, complete the examination, clear diagnosis and then be treated accordingly.