Sometimes walking buttock pain, lower limb numbness consider with lumbar disc herniation, lumbar spinal stenosis and other diseases. 1. Herniated lumbar intervertebral disc: long-term lumbar muscle strain can lead to lumbar intervertebral disc lesions, resulting in rupture of the annulus fibrosus, nucleus pulposus dislodgement caused by lumbar and leg pain, as well as nerve root compression manifestations, walking can exacerbate the condition, the compression of the sciatic nerve, there can be buttock pain and lower extremity numbness symptoms. 2. Lumbar spinal stenosis: due to congenital and acquired causes of lumbar spinal canal stenosis, resulting in the contents of the spinal canal pressure, causing lumbar, leg and hip pain and sensory anomalies, making the buttock pain and lower limb numbness when walking. Sore buttocks and numbness of the lower limbs can also be caused by other reasons, it is recommended to go to the hospital in time, after a clear diagnosis for treatment.