1, no back and leg pain is not lumbar disc herniation? The vast majority of patients with lumbar disc herniation mainly manifested as low back and leg pain. However, in some patients, due to the location of the herniated disc, the herniated material only stimulates the proprioceptive and tactile fibers, which clinically only causes numbness in the lower limbs without symptoms of lumbar and leg pain. There are also some patients who have herniated intervertebral discs in the center of the spinal canal, which only show numbness in the perineum, urination and defecation disorders, and even sexual dysfunction, and should be diagnosed as lumbar disc herniation even though there are no symptoms of lumbar and leg pain. 2, CT found lumbar disc herniation is lumbar disc herniation? Sooner or later in a normal person’s life, lumbar intervertebral disc metamorphosis occurs.Niesel found that 30%~50% of normal people can have lumbar intervertebral disc herniation through CT examination. There can even be a large nucleus pulposus protrusion without symptoms of nerve root compression and irritation, i.e. asymptomatic lumbar disc herniation (ALDH). As long as there is no pain and other symptoms, it can not be diagnosed as lumbar disc herniation (lumbar disc herniation). 3.Does lumbar disc herniation occur with leg twitching? Muscle spasms can also occur in patients with lumbar disc herniation, most often seen after muscle contraction. This is a lumbar disc herniation with calf cramps as the main manifestation. It is caused by the long-term pressure on the nerve root, so that the nerve outer membrane or the nerve bundle between the fibrosis, resulting in the nerve root sensory fiber stress threshold increases. 4. Can lumbar disc herniation cause lower abdominal pain? Clinically, there are patients with lumbar disc herniation who only show pain in the lower abdomen or groin area, mainly due to the high level of disc herniation compressing the lumbar 1, 2, 3 nerve roots, resulting in pain in the innervation area of these nerve roots. If the herniated disc stimulates the sympathetic fibers in the sinus nerve, it can also cause lower abdominal pain. 5.Why is the thickness of the lower limbs different in lumbar disc herniation? It is because the herniated intervertebral disc compresses the nerve root, which belongs to the lower motor neuron, and once compressed and damaged, it will cause muscle atrophy and muscle weakness in the lower limbs of the innervated area of the nerve root, which is manifested as the thickness and thinness of the two lower limbs. In addition, when walking or standing due to pain will naturally shift the weight to the healthy side of the limb, so that the affected limb activities to reduce the occurrence of wasting muscle atrophy. 6, lumbar disc herniation why there will be double lower limb numbness and pain? Lumbar disc herniation often manifests as numbness and pain in one side of the lower limbs. However, a few people can also show symptoms in both lower limbs. Causes: ① central disc herniation in the same segment; ② disc herniation in different segments on different sides; ③ disc herniation compresses one side first, and then presses and stimulates the nerve root on the other side after displacement.