If the femur is painful, the first step is to determine whether there has been trauma, which can lead to damage to the soft tissues surrounding the femur and may also lead to a fracture of the femur. In this case, the pain is very severe and requires active and complete examination and, if indicated for surgery, surgical treatment. If conservative treatment, pay more attention to rest, avoid excessive sagging, and do not push and massage, apply anti-inflammatory and analgesic drugs for symptomatic treatment such as flurbiprofen ester injection, lidocaine hydrochloride can also be used for local closure treatment. If the femoral pain is caused by local septic infection or tumor-occupying disease, anti-infective treatment with sensitive antibiotics can be actively selected, and if necessary, surgery can be performed to remove the local infection and tumor lesions. If the femoral pain is caused by lumbar disc herniation, you need to actively rest on a hard bed, apply mannitol injection for dehydration and swelling treatment, along with anti-inflammatory and analgesic drugs for symptomatic treatment.