It is well known that sciatica is one of the most common types of sciatica in life, so our knowledge of sciatica has to be gradually increased. Sciatica it is a very complex disease. It has not only the same clinical manifestations, but also a wide range of treatments, and is prone to recurrent attacks. We often see patients suffering from sciatica in our daily life, when suffering from this disease, many patients will feel a very painful sensation on the side of the waist, the disease will become more and more serious if the patient does not care about it for a long time, the following tell you what are the main symptoms of this disease! 1, cut-like pain sciatica patients will appear scoliosis cut-like pain, calf lateral and dorsal foot sensory loss, gluteal muscle tone relaxation, Achilles tendon reflexes weakened or disappeared, the more serious the phenomenon, and may even cause paralysis. 2, lumbar stiffness and discomfort The symptoms of sciatica are mostly stiffness and discomfort in the lumbar region, with transient pain in the lumbar and lower limbs when walking or moving, which can gradually develop into severe burning or cutting-like pain, radiating along the sciatic nerve, and sciatica patients can reach from the lumbar and hip region to the lateral part of the thigh, the back of the calf and the lateral part of the foot. 3, chronic injury pain Acute lumbar injury or acute attack of chronic injury, seriously affects life, the pain signs are typical radiating sciatica. On examination, there is obvious muscle relaxation and atrophy, the straight leg pick-up test is within thirty degrees, and the nerve reflex is weakened or disappeared. Ninety percent or more is caused by lumbar disc herniation. 4, claudication When sciatica reaches a certain level, the symptom of claudication will appear. When patients do not receive relevant treatment and do not take it seriously, sciatica will slowly evolve into the symptom of claudication, and claudication is also one of the most important symptoms of sciatica, which is also a harmful manifestation of sciatica. 5, radicular sciatica The onset varies with the cause, the most common lumbar disc herniation, often under the force, bending or strenuous activity and other triggers, acute or subacute onset, a few chronic onset, pain often from the waist to one side of the hip, thigh, popliteal fossa, lateral calf and foot radiation, burning-like or cutting-like pain, coughing and force when the pain can be increased, more so at night, the patient to avoid nerve stretching In order to avoid nerve strain and pressure, patients often take special pain-reducing postures, such as sleeping on the healthy side, hip and knee flexion, standing on the healthy side, causing scoliosis over time, more bending to the healthy side, sitting into the hip tilt to the healthy side, in order to reduce the pressure on the nerve root, pulling the sciatic nerve can induce pain, or increased pain, such as Kernig sign positive patients lying supine, first flexing the hip and knee at right angles, and then lifting the lower leg up, due to flexor muscle spasm For example, in a positive patient with Kernig’s sign, the patient lies supine, first flexes the hip and knee at right angles, then raises the lower leg, due to flexor spasm, the knee extension is limited and less than 130 degrees with pain and resistance; in a positive patient with Lasegue’s sign, the lower limb is extended, and the affected limb is raised less than 70 degrees and causes pain in the leg. The Achilles tendon reflex is weakened or disappeared. The pain often radiates from the buttock to the posterior femur, posterior lateral calf and lateral foot, and increases with walking, activity and traction on the sciatic nerve. Physical examination reveals: 1. pressure points along the distribution area of the sciatic nerve such as the parietal, iliac, gluteal, fibular, and ankle points. 2. Positive sciatic nerve involvement signs, such as Kernig’s sign, Laseque’s sign, Bonnet’s sign, etc. 3. There are varying degrees of motor, sensory, reflex and vegetative dysfunction within the sciatic nerve innervation, resulting in weak dorsiflexion of the affected toes, hyperalgesia of the lateral calf skin, loss of Achilles tendon reflex, and decreased gluteal muscle tone.