There are many reasons for leg pain, mainly including three aspects: muscle, blood vessel and nerve problems. Nerve problems mainly include lumbar disc herniation, lumbar spinal stenosis, lumbar spondylolisthesis, piriformis syndrome, etc., which cause nerve compression of lower limbs, leading to pain, numbness and limited movement of lower limbs. Vascular problems are also very common. The most common vascular disease is vascular occlusive arteritis, which leads to insufficient blood supply and oxygen supply to the lower limbs, resulting in leg pain and numbness of the lower limbs. Muscle diseases, mainly including muscle atrophy and inflammation of muscles and myofascia, lead to lower limb pain. When muscles are stimulated, muscle spasms can also cause leg pain. Anxin Medicine suggests that if you feel unwell, go to the hospital for examination sooner or later. I wish you a happy life!