Lumbar disc herniation may cause erectile dysfunction, but the probability is not large. Generally, lumbar disc herniation will not cause erectile dysfunction, but if the lumbar disc herniation is serious or the herniated position is low, it may cause erectile dysfunction. 1. Severe lumbar disc herniation: if there is free nucleus pulposus inside the spinal canal, or if the herniated lumbar disc extensively and severely compresses the relevant nerve roots of the lumbar and caudal vertebrae, it may cause erectile dysfunction. 2. Lower lumbar disc herniation: If the lumbar disc herniation is lower, although the degree is not very serious, but the compression and stimulation of the relevant nerve roots of the caudal vertebrae, it may also cause erectile dysfunction. Lumbar disc herniation or physiological dysfunction of erection should go to the hospital in time, under the guidance of the doctor for treatment.