Pain in the right inner thigh is commonly caused by the following diseases: First, injury to the inner thigh muscle group, during strenuous exercise, can cause strain on the inner thigh muscle group, the muscle will have severe swelling, pain and restricted activity, the hip joint cannot be abducted, and the pain symptoms will be aggravated when walking. Second, strain of the thigh adductor muscle group, prolonged standing, weight bearing, walking, will cause strain of the thigh adductor muscle group, the patient will have right inner thigh soreness and pain symptoms. Third, lumbar disc herniation, high lumbar disc herniation will lead to nerve root compression, thus causing radiological pain symptoms in the inner thigh, the patient will have lumbar pain and lumbar movement limitation, usually lumbar 1-2 segments and lumbar 2-3 segments protrusion, through MRI or CT scan, the location of the lesion can be found.