One day, an uncle came to our clinic complaining of muscle atrophy in both hands and numbness in the fingers, and after seeing many places, he said it was cervical spondylosis, which was treated for a long time without improvement. He was admitted to the hospital and underwent surgery under local anesthesia. The numbness was relieved soon after the surgery, and the atrophied muscles were slowly restored to fullness after 2 months of recuperation at home. Carpal tunnel syndrome, also known as carpal tunnel stenosis, is caused by the compression of the median nerve in the wrist, due to trauma, fracture, dislocation, sprain or wrist strain that causes thickening of the transverse carpal ligament, swelling of the musculature in the canal, degeneration of the tissue due to stasis of blood, or degeneration and proliferation of the carpal bone, which reduces the circumference of the canal lumen, thus compressing the median nerve and causing numbness and weakness of the fingers. It can be caused by long-term wrist stress, such as labor (needlework, driving), playing with the mouse, etc. It can be manifested as numbness or tingling in the radial 3.5 fingers, intensifying at night, waking up in pain, increasing in pain when the temperature is high, and relieving after activity or shaking the hand; cold and cyanosis of the affected fingers in the cold season, insensitivity of finger activity, poor thumb abduction muscle strength; in severe cases, muscle atrophy of the affected interphalangeal muscles, shiny skin, thickened nails, and even ulcers of the affected fingers and other symptoms of neurotrophic disorders. If conservative treatment (brace fixation and hormone) is ineffective, surgical treatment can be chosen. Carpal tunnel decompression surgery is feasible, which is safe and effective, and minimally invasive.