To determine the location of inguinal lymph nodes in men, it is important to determine the location of the groin. The groin is the location of the medial aspect of the root of the thigh. A horizontal line is drawn along the anterior superior iliac spine toward the rectus abdominis muscle, and at the midpoint of the horizontal line is the location of the groin. The inguinal lymph nodes are located in the groin and perineum, which is the area that connects the base of the thigh to the abdomen. Under normal circumstances, the inguinal lymph nodes cannot be touched because they are deeper in the groin and can only be touched when they are enlarged. There are many reasons for inguinal lymph node enlargement, mainly due to localized inflammation can lead to inguinal lymph node enlargement. In addition, diseases related to the lymphatic system or metastasis of cancer can lead to swollen inguinal lymph nodes. Therefore, once you can feel the inguinal lymph nodes, you should go to the hospital in time for the appropriate examination, and find out the cause of the disease and actively treat the symptoms.