The symptoms of perineal numbness and numbness in both feet at the same time may be caused by lumbar disc herniation, cauda equina syndrome and other factors, and you should consult a doctor in time to find out the cause. 1. Herniated lumbar intervertebral disc: When there is a herniated lumbar intervertebral disc, it may compress the nerve root of the perineal nerve, and therefore numbness of the perineum and both feet may occur at the same time. 2. Cauda equina syndrome: diseases caused by damage to the cauda equina, such as spinal fracture, lumbar degenerative diseases such as lumbar spinal stenosis, will appear perineum numbness, lower limb weakness and numbness of clinical symptoms. When the symptoms of perineal numbness and numbness of both feet occur at the same time, it is necessary to consult a doctor and make a clear diagnosis in time to avoid delaying the condition.