Lower right abdominal pain in men may be caused by chronic appendicitis, right inguinal hernia, right ureteral stone and so on. 1. Chronic appendicitis: when appendicitis is caused by obstruction of the appendiceal lumen and bacterial invasion, it leads to inflammation of the appendix, which can lead to pain in the right lower abdomen, and some patients may also have metastatic pain in the abdomen. 2. Right inguinal hernia: caused by increased abdominal pressure and weakness of the abdominal wall, then there will be a swelling in the groin, if the swelling is large, can not be completely returned, compression of the surrounding tissues, the patient will feel pain in the right lower abdomen. 3. Ureteral stones on the right side: when stones appear in the urinary system, when the stones enter the ureter, resulting in damage to the mucosa of the ureter, pain in the right lower abdomen may occur. In addition to the above, right lower abdominal pain in men can be seen for other reasons. If the symptoms persist, it is recommended to seek medical attention, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and actively cooperate with the doctor in handling or treating the problem.