Lumbar effusion and leg numbness are mainly considered to be related to lumbar injuries or inflammation and compression of nerve roots, and treatment options need to be selected according to the severity of the disease, such as physical therapy, drug therapy or surgery. 1. Physical therapy: If the lumbar effusion is accompanied by numbness in the legs, if the situation is not particularly serious, you can choose traction, ultra-short-wave treatment with magnetic heat therapy, to promote the absorption of the fluid and relieve the nerve compression, thus relieving the symptoms. 2. Medication: If the symptoms of lumbar effusion and leg numbness are obvious, you can take non-steroidal anti-inflammatory drugs at the early stage, together with the medication of activating blood circulation and removing blood stasis, such as Celecoxib and Panax ginseng tablets, etc., and at the later stage, you can combine with the medication of nutritive nerves, such as Methylcobalamin and so on. 3. Surgery: If the symptoms of lumbar effusion and leg numbness are very serious, and obvious structural changes of the lumbar vertebrae have already occurred, it is necessary to use surgical methods of treatment, such as minimally invasive intervertebral foraminoscopic surgery. Specific treatment needs to be carried out under the guidance of a professional physician, the use of medication in accordance with the doctor’s instructions, in the recovery period to strengthen the rest, otherwise it is easy to lead to the aggravation of the symptoms.