Male right lower abdominal swelling, may be caused by inguinal hernia or mesenteric lymphadenitis, need timely examination to clarify the diagnosis, medication or surgical treatment. 1. Inguinal hernia: due to the weakness or defect of the inguinal area so that the abdominal organs protrude outward from here, forming a subcutaneous mass, can improve the ultrasound or CT to clearly diagnose, to the main surgical treatment, according to the specific circumstances, the development of different surgical methods, such as laparoscopic hernia repair, traditional hernia repair, tension-free hernia repair. 2. Mesenteric lymphadenitis: clinical manifestations include abdominal pain, fever, nausea, vomiting, constipation or diarrhea, and a nodular mass can be palpated in the right lower abdomen. Color ultrasound can be perfected to confirm the diagnosis. Treatment if the bacterial infection, available amoxicillin, cephalosporin antibacterial anti-inflammatory drugs; viral infection with acyclovir and other treatments, there are other symptoms of symptomatic treatment can be. If you have an unexplained lower abdominal mass, it is recommended that you consult a doctor for a complete examination, and the medication should be reasonably applied according to the doctor’s instructions.