In clinical practice, the patient presents with sudden pain in the left hand. The cause may be that the patient suffers from carpal tunnel syndrome, due to spastic contraction of the transverse carpal ligament, which will further aggravate the degree of the condition after trauma and will cause further compression of the median nerve, and the patient will experience sudden pain, which will also be accompanied by numbness and weakening of muscle strength in the finger area. If the patient has cervical spondylosis, the sudden onset of cervical spondylosis may also lead to sudden pain in the finger area. Patients with stenosing tenosynovitis in the left hand, or tendon sheath cysts or bursitis in the wrist, can also develop this clinical manifestation. The patient can be instructed to reduce the weight-bearing activities of the wrist, keep warm, and take hot compresses or oral blood-boosting medications to relieve the pain.