Obvious trauma resulting in nerve injury is relatively easy to diagnose, however, chronic injury to the peripheral nerve manifests atypically and is often misunderstood by clinicians and not taken seriously by patients, however, once the symptoms are severe, the nerve injury has arrived at an advanced stage, with poor treatment results and even complete loss of function. These common peripheral nerve injuries are the following: 1, carpal tunnel syndrome. This is due to chronic injury to the median nerve in the wrist. Causes include repeated flexion and extension of the wrist, wrist arthritis, sequelae of wrist fractures, tumors, etc. The main manifestation is unexplained numbness of the fingers, occurring in the thumb index finger middle finger and ring finger radial half, depending on the severity of nerve damage, the degree of numbness of the fingers are different, easy to be ignored, and non-professional doctors have not accurate and timely diagnosis, and therefore often delay the treatment of the disease, serious will appear in the palm of the big fish muscle atrophy, the thumb can not do palm movement, that is, hand weakness. At this time, even if the surgery, the effect is limited, if early and timely surgery, can be completely cured. Of course, the operator must be a professional hand surgeon, because improper surgery, not only can not completely solve the problem of nerve damage, but also may cause new problems, namely the occurrence of neuroma of the palmar cutaneous branch of the nerve, the patient pain. 2. Elbow canal syndrome. This is due to the repeated wear and tear of the ulnar nerve in the posterior nerve groove of the elbow, commonly known as “numb tendon”. In the early stage of nerve injury, the condition is hidden and not easily detected at an early stage. Patients mainly experience numbness in the little finger and ring finger, or just feel that they cannot pinch a pin. When they go to the hospital, doctors often diagnose it as “cervical spondylosis” and the related treatment is often ineffective until they suddenly find that the muscles on the dorsal side of the palm of the hand start to atrophy and the hand resembles a dead bone hand, and only then do they pay attention to it, but at this time, even with surgery, the chances of restoring the function of the hand are very small. Many of the patients I see are in this situation. They did not pay attention to it in the early stage, or the doctor they found did not help diagnose it clearly, and when they found us through other people’s recommendation, it was already in the late stage, which is very regrettable. 3. Thoracic outlet syndrome. This is a nerve damage produced by compression of the brachial plexus nerve at the thoracic outlet of the neck. This disease is one of the most easily confused peripheral nerve injuries with cervical spondylosis. In 2008, we saw a female patient in her 30s who had been feeling weakness and discomfort in her upper extremities. The family thought that it was the child’s poor health, and they also looked for a doctor, but they did not tell the truth, and they have been suffering for more than 30 years. Later, we were referred by others and diagnosed with thoracic outlet syndrome after combining relevant examinations, and the patient recovered completely after surgery. At that time, the newspaper in Nanjing also made a related report. In fact, there are special examination methods for thoracic outlet syndrome, but these methods are not high-end instruments, but the experience of doctors. The brachial plexus nerve and blood vessels travel in the same gap, and when the nerve is compressed, the blood vessels are also compressed, therefore, indirectly, the changes of blood vessels are one of the methods to determine the site of nerve injury. From this case, we can see that it is defective for doctors to rely too much on instruments nowadays, and actually doctors’ experience should be more valuable in diagnosing diseases. 4, pear-shaped muscle syndrome This is the sciatic nerve in the hip over the sciatic foramen by the chronic wear and tear of the pear-shaped muscle and other structures stuck pressure. Commonly known as “sciatica”, this peripheral nerve injury is particularly easy to confuse with “lumbar disc herniation”. In clinical work, we often encounter cases of confusion between the two diseases, and the most common is that doctors diagnose all low back and leg pain as “lumbar disc herniation”, but of course, the treatment of pear-shaped muscle syndrome according to “lumbar disc herniation” will also be effective, such as The treatment will be effective, such as: lying on a hard bed, resting quietly, avoiding bending and carrying heavy objects, retreating and walking, taking oral anti-swelling drugs and anti-inflammatory and pain-relieving drugs, as well as neurotrophic drugs, and some patients also use acupuncture and physiotherapy treatment, which will also achieve results. But this disease has its own special circumstances, lumbar disc herniation patients are not sedentary, when the symptoms improve to carry out functional exercise of the lumbar muscles, while patients with pear-shaped muscle syndrome should be cautious, because improper exercise methods will aggravate the nerve compression and injury, again the symptoms aggravated, because the sciatic nerve is the longest nerve in the limbs, once the injury, recovery effect is poor, leaving more sequelae. To pay special attention. 5, radial canal syndrome This is the radial nerve in the elbow palmar side of the radial nerve tube compression caused. The radial nerve travels distally from the lateral side of the upper arm through the anterior side of the elbow and is divided into a deep branch and a superficial branch. The deep branch enters the dorsal side of the forearm through the Frose arch through the posterior rotator muscle and innervates the extensor tendons of the hand and wrist. It is common for patients to wake up from sleep and suddenly find that they cannot lift their wrist, i.e., they have a drooping wrist and feel a sense of weakness and swelling in their forearm. Some patients also begin to experience weakness in wrist or finger extension and gradually develop an inability to straighten. In this case, for the former, the patient can be observed for 2-3 weeks, and if there is no recovery, prompt surgery is required, while for the latter, early surgery is the best method of nerve recovery. Generally, nerve function does not recover immediately after surgery, and a period of nerve repair is still required, even in severe cases. Among the many patients with radial canal syndrome, we have only one female patient who recovered completely on the second postoperative day, which is relatively rare. Therefore, early detection and early treatment is the principle of treatment for nerve injury. 6. Tarsal syndrome This is caused by the compression of the tibial nerve in the lower limb at the medial ankle, which mainly manifests as a numbness sensation on the sole and medial side of the foot, and some patients may experience pain. It needs to be differentiated from lumbar disc herniation. This is caused by the compression of the common peroneal nerve in the upper part of the lower leg at the lateral peroneal nerve canal. The most prominent bone on the lateral side of the knee joint is felt with the hand, and underneath it is the place where the common peroneal nerve passes. Here, the nerve is wrapped around the bone from the posterior to the anterolateral side, so the nerve is not only susceptible to wear and tear from the surrounding structures, but is also particularly susceptible to injury from external forces. Among other things, if the plaster rest is not properly positioned, it can also lead to nerve injury due to repeated compression, and we have treated patients with this condition. This nerve injury is also the most common type of medically induced nerve injury. It needs to be taken seriously by doctors. Likewise, for the general public, their own protection here should be especially attentive. The main manifestation of peroneal tunnel syndrome is foot drop, which means that the ankle joint cannot be lifted when walking, and it is easy to fall.