Leg weakness can be treated as follows: 1. First of all, the primary disease should be dealt with. For this symptom patients should first go to the orthopedic department to clarify the cause of this symptom, and then carry out thorough treatment for it. The common causes of this symptom are lumbar disc herniation, osteoarthritis of the knee or meniscus injury, etc. 2, after the treatment of the primary disease, the lower limbs can be targeted physical therapy, such as herbal fumigation, acupuncture, tuina, etc. 3, the patient should do the corresponding functional exercise, such as the patient can do the straight-leg elevation. When doing this exercise, the patient is required to take the supine position, and then the knee joint is straight, slowly raise the lower limbs, until it reaches 90 ° and then slowly put down. This kind of exercise is very helpful for patients to bear weight on the ground in the later stage. 4, in the process of patients walking on the ground, pay attention to the gradual exercise. Generally speaking, we should take the flat road and walk slowly, and then slowly extend the time and distance. In addition, in the process of exercise should pay attention to the joints for protection, such as to do a good job on the knee joints such as knee pads protection and appropriate hot compresses. In addition, patients can also take diet combined with exercise to reduce their own weight, in order to alleviate the symptoms of leg weakness.