1, if the knee joint up and down the stairs pain can be in the lumbar two, three to find the cause; 2, if the lumbar pain directly look for lumbar three, four; 3, if the outer side of the leg pain check lumbar four, five; 4, if the back side of the leg pain look for lumbar five and sacral one; 5, if the aggravation of the rest, after the activities of the relief look for the discs; after the rest of the reduction of the aggravation of the activities to look for the stenosis of the spinal canal; 6, if the abnormalities of the urination and defecation, that is, the hip joint may be impaired, 7, if the Restriction of inner thigh look for sacroiliac. Yuan Qiang, Department of Tuina, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine 8, one side pain for lumbar bulge. 9, both sides of the pain for spinal stenosis. 10, three points of pain for bulging, hernia. 11, the center pain for injury tendon. 12, more than three years can be calcified hyperplasia. 13, backward bulge for posterior protrusion. 14, spinal collapse for anterior protrusion, and then slip. 15, two sections of one side pain for twisting. 16.Crossing pain is rotation. 17, 3 section one side pain for rheumatism. 18, 4, 5 side pain for kidney deficiency. 19, 5, 1 side pain for rheumatism. 20, muscle stiffness (morning stiffness), lumbar spine activity is limited for spinal ankylosis. Lumbar disc herniation causes: the main disc itself degenerative changes, such as trauma, chronic strain, as well as cold and damp and other factors, so that the lumbar disc fibrous ring rupture, so that the nucleus pulposus protrudes. Clinical manifestations of herniated discs in different parts of the body: if the knee joint hurts when going up and down the stairs, you can look for the cause in lumbar two and three; if the lumbar area hurts, you can directly look for lumbar three and four; if you have pain on the outside of the leg, you can look for lumbar four and five; if you have pain on the back side of the leg, you can look for lumbar five and sacral one; if you feel aggravated by resting and relieved by activities, look for the discs; if you feel relieved by resting and aggravated by activities, look for the stenosis of the spine; if you have abnormalities of urination and defecation, you can find that your hip may be impaired. If the inner thigh is restricted look for sacroiliac. Pain on one side is lumbar protrusion. Pain on both sides is spinal stenosis. Pain at three points is bulging, hernia. Pain in the center is hamstring injury. More than three years can be calcification and hyperplasia. Backward bulge is posterior protrusion. Collapse of the spine is anterior protrusion, then slip. Pain in one side of two joints is twisting. Crossing pain is rotation. 3 section pain on one side is rheumatism. 4 and 5 pain on both sides is kidney deficiency. 5 and 1 pain on both sides is rheumatism. Muscle stiffness (morning stiffness) and limited movement of lumbar spine are spinal ankylosis. The cause of lumbar disc herniation: the main disc itself degenerative changes, such as trauma, chronic strain, and cold and damp and other factors, so that the lumbar disc fibrous ring rupture, so that the nucleus pulposus protrudes. Clinical manifestations of herniated discs in different parts of the body: according to the pressure and pain points, areas of decreased sensation in the lower limbs, reflexes, X-rays, and spinal angiography and CT, etc., to be clearly localized. Lumbar 3-lumbar 4 disc herniation (compression of lumbar 4 nerve) pain in the lumbar region, one side of the buttock, posterior lateral thigh, and radiating to the front of the thigh and anterior medial calf; numbness of the anterior medial calf; weakened or disappeared knee reflexes; pressure and pain points in the intervertebral space next to the spinous process of lumbar 3; weak knee extension; lumbar 4-lumbar 5 disc herniation (compression of lumbar 5 nerve) pain in the sacroiliac joints, the iliac joints, and the posterior lateral thigh and calf. and radiates to the anterolateral calf, dorsum of the foot and bunions. Numbness on the dorsum of the foot including the bunion on the lateral side of the calf; diminished dorsiflexion of the bunion; Achilles tendon reflex may be unchanged or diminished; pressure points next to the spinous process of lumbar 4; lumbar 5-sacral 1 disc herniation (compression of the sacral 1 nerve) with pain in the buttocks on the lumbosacral side of the joints, in the thighs and the posterior lateral side of the calf and in the feet; numbness on the lateral side of the foot including the lateral three toes; diminished metatarsal flexion of the foot and the bunion; weakness or atrophy of the triceps muscles of the calf; decreased or lost Achilles tendon reflex. or disappearance; obvious pressure points next to the spinous process of lumbar 5; lumbar 2-lumbar 3 disc herniation with sensory numbness or hypersensitivity in the buttocks and lateral thighs, weakness of the quadriceps muscle, and weakened knee reflexes. Central type lumbar disc herniation: when the large piece of intervertebral disc tissue protrudes to the center, it is often manifested as lumbar and two lower limbs are painful, and there are numbness and weakness of two lower limbs, and in the severe case, the inability to walk is similar to paraplegia, perineal sensation disappears, urinary and defecation dysfunction, testicular reflex, and the disappearance of the anus reflex, such as after the surgery, there can be a mild or severe sexual dysfunction. Lumbar disc herniation can be accompanied by lumbar spinal stenosis, but lumbar spinal stenosis can be without lumbar disc herniation. Identification method: Intermittent claudication: that is, due to walking caused by the corresponding vertebral segment ischemic transcranial radiculitis, and the appearance of lower limb claudication, pain and numbness and other symptoms. The pain disappears after squatting and resting for a few moments. That is to walk again, after another attack, and then rest, so called “intermittent claudication”; lumbar intervertebral disc herniation combined with spinal stenosis can occur at the same time. Although a similar phenomenon sometimes occurs in simple disc herniation, it is slightly relieved after resting and hardly disappears completely. Patients with spinal stenosis often have a lot of complaints, and on physical examination the root deficiency disappears or, in some cases, there are no positive findings due to rest while waiting for the doctor. It is significantly different from the persistent radiculopathy off and human interaction that occurs in lumbar disc herniation. Limited lumbar posterior extension, but can be forward flexion: due to the posterior extension makes the lumbar vertebral spinal canal effective spacing more reduced, and aggravate the symptoms and cause pain. Therefore, the patient is limited in lumbar extension and prefers a forward flexion position that increases the volume of the spinal canal. For this reason, patients may experience “cycling for miles and walking for 100 meters”. This is clearly different from herniated disc.