A little pain in the groin requires attention to the possibility of the following two diseases: first, the most common is inguinal lymphadenitis caused by bacterial infections in the urinary tract, as well as in the rectum and perineum, which usually manifests as local lymph node enlargement with pain. Second, pay attention to the possibility of inguinal hernia entrapment, in rare cases it may be closed-hole hernia entrapment, whether it is closed-hole hernia or inguinal hernia entrapment, because the presence of intestinal tube compression affects the blood flow of intestinal tube, usually need timely surgical treatment, otherwise prolonged intestinal tube compression may easily lead to ischemic necrosis, or even diffuse peritonitis, toxic shock endangering the life of the patient.