Patients with right-sided lumbar numbness, the following common causes: First, the right side of the lumbar muscle strain: in the process of strenuous exercise, easily lead to acute strain of the right side of the lumbar muscles, local exudation, edema, will cause nerve endings pressure, the patient will show clinical symptoms of right-sided lumbar numbness, accompanied by lumbar spine activity restrictions, serious cases may also be accompanied by lumbar small joint disorders. Second, lumbar disc herniation: when the nerve root on the right side is compressed, the clinical symptoms of lumbar numbness on the right side will also appear, accompanied by muscle spasm and tension in the lumbar muscles on that side, and the pain symptoms will be aggravated when pressing, and the clinical lesions of lumbar disc herniation can be found through CT scan and MRI. Early diagnosis and early treatment can lead to gradual relief of symptoms, and patients should also strengthen the training of lumbar muscles in general to improve the stability of the lumbar spine, protect the lumbar spine and avoid trauma and other diseases.