Leg weakness after minimally invasive surgery for lumbar disc herniation can be relieved by general treatment, physical therapy and medication. 1. General treatment: usually pay attention to rest, it is recommended to sleep on a hard board bed. Avoid excessive lumbar activity, prevent prolonged standing and sedentary bending and so on. Appropriate activities can be done to the feet, which is conducive to promoting the recovery of the legs. 2. Physical therapy: hot towels or hot water bags can be taken to the legs for hot compresses to promote blood circulation and improve symptoms. Physical therapy methods such as low and medium frequency electrotherapy and infrared therapy can also be taken to relieve symptoms. 3. Drug treatment: leg weakness after minimally invasive surgery for lumbar disc herniation may be caused by nerve damage from the surgery, and oral nerve-nourishing drugs such as methylcobalamin, adenosylcobalamin tablets and vitamin B can be taken to relieve the symptoms. If the above symptoms occur, it is recommended to go to the regular hospital in time, and early formal treatment.