Recurrent inflammation of inguinal lymph nodes can be caused by lower limb infection, reproductive system infection and other factors. 1. Lower extremity infections: Lower extremity infections are a common cause of inguinal lymph node inflammation, such as boils, cellulitis, salpingitis, foot fungus and other diseases, germs can break through the skin barrier into the inguinal lymph nodes, which leads to inflammation of the inguinal lymph nodes. 2. Reproductive system infections: men have vulvar and genital inflammation, or women have mycosis vaginalis and other reproductive system infections, the inflammation can also spread to the inguinal area through the lymphatic system, thus causing inflammation of the inguinal lymph nodes. When the inguinal lymph nodes are repeatedly inflamed, it should be considered that other parts of the disease spread to this area, and timely medical consultation is needed to clarify the cause of the disease and actively carry out appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.