Walking pain on the inner side of the left thigh can be caused by myofasciitis, trauma, lumbar disc herniation, hip joint disease, etc. It can be treated with general, physical, medication and surgery. 1. Myofasciitis: long-term walking or strenuous exercise, thigh muscles overworked or cold, can trigger myofasciitis pain symptoms. Need to reduce activities, pay attention to keep warm, can be prescribed oral celecoxib and other non-steroidal anti-inflammatory analgesic drugs treatment. 2. Trauma: Trauma can lead to soft tissue injury of the left inner thigh, which can cause pain symptoms. Attention should be paid to the braking and rest, elevation of the affected limb, cold compresses can be applied during the acute stage within 72 hours, and hot compresses can be applied after 72 hours of injury. Oral analgesics such as ibuprofen and blood-stasis activating drugs such as Panax ginseng tablets can be taken according to the doctor’s instructions (to promote blood circulation and eliminate blood stasis in the body). 3. Lumbar disc herniation: Lumbar disc herniation compresses the nerves, which may lead to pain in the inner side of the left thigh when moving. Attention to lumbar rest, lumbar massage, traction, heat treatment, but also follow the doctor’s instructions oral methylcobalamin and other nutritive nerve drugs and analgesic drugs such as Loxoprofen sodium, conservative ineffective surgical treatment. 4. Hip diseases: femoral head necrosis, hip synovitis, local cysts, tumors and other diseases, may appear in the inner thigh radiating pain symptoms. Can follow the doctor’s instructions oral celecoxib and other non-steroidal analgesic anti-inflammatory drugs symptomatic treatment, if necessary, feasible targeted surgical treatment. If you have pain in the left inner thigh, you should consult a doctor in time, and under the guidance of a specialist, you can actively carry out appropriate treatment, which will help to alleviate the pain and other uncomfortable symptoms as soon as possible.