A hard lump in the groin area with significant pain. It most commonly occurs as a subcutaneous lipoma or fibroma, which is also benign, and the main treatment option is surgery. They can be removed under local anesthesia, and a pathological examination is also required after surgery. In addition, in some patients, sebaceous cysts are caused by poor local hygiene and sebaceous gland evacuation secondary to obstructive infection, resulting in significant congestion and edematous changes. If an abscess is formed, it should be incised and drained, or surgically excised in the limited stage, and after surgery, it should be treated with anti-inflammatory therapy, including oral broad-spectrum penicillin V potassium tablets. Some patients have pain due to enlarged lymph nodes in the inguinal region, mostly secondary to soft tissue infections in the lower extremities, commonly cellulitis. After systematic anti-infection treatment, mainly penicillin sodium intravenous drip is chosen, the patient’s condition can gradually improve.