If a patient with a herniated lumbar disc has pain in the calf, it is often due to a herniated disc in lumbar 4 or 5 that compresses the nerves and causes pain in the calf. If this symptom occurs, the following treatment can be carried out: first, oral medication, oral pain medication can be taken, such as aminoglutethimide tablets or celecoxib, loxoprofen sodium tablets, and oral nerve-nourishing medication can be taken, such as methylcobalamin tablets, vitamin B1 tablets, vitamin B6 tablets. Second, lumbar traction, lumbar traction can make the lumbar disc herniation part retraction, can reduce the herniated disc on the nerve compression, so that the symptoms of calf pain can be reduced. Third, physical therapy, microwave physiotherapy or far-infrared physiotherapy, for the relief of lumbar pain and neuralgia have a very good effect. Fourth, if the above methods do not work, surgery is also needed to lift the compression of the nerve and remove the disc, which can make the calf pain caused by herniated disc disappear and thus cure.