(1) low back pain: This pain in the leg pain before there can be at the same time. Lumbar or lumbosacral pain, primarily in the next, the pain is mainly due to disc herniation stimulated the outer annulus fibrosus and posterior longitudinal ligament of the vertebral nerve fibers arising from sinus. Pain in deep, difficult to locate, usually dull pain, tingling, pain, or radioactive.

(2) lower limb radiation pain: Because of lumbar disc herniation have occurred within the lumbar 4,5 and 5 lumbar intervertebral sacral 1, while the sciatic nerve was 1-3 from the waist 4,5, and sacral nerve roots, so many patients with lumbar disc herniation have sciatica, or first, hips began to gradually radiate into the posterolateral thigh, lateral calf, dorsum and lateral plantar and toe. The outstanding common cause of central bilateral sciatica. When the coughing, sneezing, and urine and other intra-abdominal pressure increased when the transmission power increase like sciatica. Leg pain emphasis on low back pain is disc herniation, one of the main signs.

(3), numbness and paresthesia: lumbar disc herniation can cause nerve root contact area involves the partial nature of oppression and repression, not the body of the nerve fibers and blood vessels caused by ischemia and hypoxia pressure, it involved nerve root control Regional pain, numbness or other abnormal feelings. 4,5 lumbar intervertebral disc can affect L5 nerve root and the emergence of posterior thigh, lateral calf, dorsum and lateral dorsal toe numbness exception. Lumbar 5 sacral 1 dorsal disc can affect the skin paresthesia 4,5 toe. If the disc material oppression or to stimulate the paravertebral sympathetic fibers can cause reflex contraction in the vessel wall appear lower extremity lower extremity chills, hair cool, dorsalis pedis artery weakened and so on.

(4) muscle paralysis: Lumbar disc nerve root compression longer matter, could result in degeneration of nerve root ischemia and hypoxia arising from nerve palsy, muscle paralysis. 4,5 lumbar disc herniation, lumbar 5 nerve root can cause paralysis due to anterior tibial muscle, fibula length of the muscle, extensor pollicis longus and extensor digitorum muscle paralysis. L5 S1 disc, the S1 nerve root involvement paralysis arising from paralysis of triceps muscle of calf.

(5) intermittent claudication: As the disc material nerve root, causing nerve root hyperemia, edema, inflammation and ischemia, when walking, the spinal canal obstruction vertebral venous plexus congestion and increased the degree of nerve root of the congestion and the expansion of the spinal cord blood vessels, but also increased the nerve root compression arising from intermittent claudication and pain.

(6) Spinal posture changes: lumbar disc herniation, about 90% of patients have different degrees of functional scoliosis, convex to the majority of the affected side, a few convex to the healthy side, mainly depending on protrusion and nerve root relationship. Scoliosis can nerve root relaxation, reduce pain. If the protrusion in the nerve root before the lateral, the spine is convex to the affected side; prominence inside the nerve roots, the spine is convex to the healthy side. Scoliosis is to reduce the prominence of nerve root compression as a protective measure.