Numbness and tingling in the lateral thigh muscles is considered more likely to be lateral femoral dermatomal neuritis. The cause of this disease is mainly considered to be pressure or trauma, but it may also be caused by abdominal tumors and compression of the pregnant uterus, while most of the causes of this disease may be unknown. The symptoms of this disease can be significantly aggravated after standing or walking for a long time, usually on one side, and occasionally on both sides, and the prognosis of this disease is good. In terms of treatment, the first priority is to treat the cause of the disease, and in terms of medication, vitamin B1 and vitamin B12 can be given. If the pain and numbness are obvious, oral painkillers and sedatives can be given, along with physical therapy.