The lateral saphenous fossa is located on the side of the spinal canal, and when it is narrowed, it can cause compression of the nerve roots, which in turn can lead to low back and leg pain. Depending on the condition, general treatment, physical therapy, medication and surgery may be needed. 1. General treatment: During the onset of nerve root irritation, it is recommended to take bed rest and avoid strenuous exercise and heavy labor to avoid aggravating the symptoms. 2. Physiotherapy: When the symptoms of lumbar and leg pain are obvious, localized hot compresses, infrared radiation and other physiotherapy can be applied to the lumbar region, which can help relieve the symptoms. 3. Drug treatment: when the pain is obvious, you can give ibuprofen and other painkillers to treat the pain, and you can also give methylcobalamin and other nerve-nourishing drugs. For those who have obvious edema of the nerve root, you can also give mannitol and other dehydrating agents, as well as prednisone and other glucocorticosteroid medications, which can reduce the edema of the nerve root, and then alleviate the symptoms. 4. Surgery: For patients with severe symptoms and ineffective conservative treatment, surgery, such as laminectomy and decompression, can also be considered. Lateral saphenous fossa stenosis is usually one of the manifestations of lumbar spine lesions, it is recommended to have a professional physician to determine the condition and give appropriate treatment, and medications need to be used under the guidance of a physician.