Carpal tunnel syndrome Definition: A syndrome formed due to the decrease in volume or increase in pressure in the carpal tunnel, causing pressure on the median nerve in the tunnel, with numbness and pain in the radial side of 3 to 4 fingers (thumb, index finger, middle finger and half of the ring finger), more pronounced at night or early in the morning, with pain sometimes radiating to the elbow; sometimes thumb abduction, weakness to the palm, and inflexible movements as the main manifestations. Clinical manifestations: 1. Numbness and pain in the wrist, radial side of the palm surface of the hand, thumb, index finger, middle finger and radial side of the ring finger, which may radiate to the elbow and shoulder. The symptoms are worse at night or early in the morning; they are relieved after activity and hand shaking. 2. Sensation in the above-mentioned areas is diminished or lost. The thumb abduction, flexion and opposite palm muscles are weakened. Compression on the palmar side of the wrist may aggravate the symptoms. Treatment principle 1.External fixation: rest and brake the wrist; if the symptoms are obvious, fix the wrist in mild dorsal extension position for 1-2 weeks with a plaster brace or splint. 2.Carpal tunnel closure: use 1% lidocaine 2ml and prednisolone 12.5mg for intracarpal tunnel injection once a week, 3-4 times. 3.Take anti-inflammatory and pain-relieving drugs. 4.Surgical treatment: If the non-surgical treatment is ineffective or the symptoms are aggravated or there is atrophy of the interosseous muscle, early surgical treatment should be performed. Cut the transverse carpal ligament to release the compression on the median nerve. Sometimes it is necessary to perform median nerve release at the same time, and surgical treatment is effective. How should carpal tunnel syndrome be prevented? Carpal tunnel syndrome can be caused by a variety of etiologies, most patients are caused by excessive hand and wrist activities, for these causes of patients prevention work is meaningful, its significance lies not only in the prevention before the onset of symptoms, but also in the prevention of recurrence after the alleviation of symptoms. In addition, relaxing the wrist before and after labor and fully moving the wrist joint can help prevent the occurrence of carpal tunnel syndrome. 2, pay attention to avoid washing cold water during labor, avoid cold stimulation and excessive stretching and flexing force, pay attention to local warmth. 3, for patients who have suffered from the disease after treatment, such as symptom relief, to pay attention to prevent recurrence, to avoid prolonged hand, wrist strength activities. 4.Patients with fractures and dislocations caused by trauma, such as numbness and pain in the fingers, should go to the hospital for examination and timely treatment to obtain good results.