If lymph nodes appear on the inner thigh, you need to go to the general surgery department of the hospital as soon as possible to improve the relevant examination and carry out treatment according to the cause, as follows: 1, bacterial infection: you need to use antibiotics for treatment, such as cephalosporins or penicillin; 2, viral infection: you need to give antiviral drugs for treatment, such as ribavirin preparations. At the same time, it can be combined with traditional Chinese medicine treatment, which is more effective; 3, allergic factors: need to actively detach from allergens, if necessary, oral desensitization drugs for treatment, such as cetirizine hydrochloride tablets, etc., while appropriately increasing water; 4, malignant tumor lymph node metastasis need to clarify the cause, find the primary tumor foci, perform radical resection of the tumor, with lymph node dissection, and later may need to give chemotherapy, targeted drug therapy, and Chinese medicine treatment, etc.