In general, cervical spondylosis patients who undergo knife surgery will not be left with obvious sequelae. If improper operation is performed during the procedure, for example, without strict implementation of aseptic operation, local infection, vascular injury, neuromuscular injury and other sequelae may occur after the operation, as follows:1. Local infection: this is the most common kind of sequelae, usually due to improper aseptic operation, or the patient’s own presence of infectious diseases, the infection is serious, but also appear abscess, which requires incision and drainage.2. Vascular injury: local vascular injury leads to hematoma in the neck.3. Neuromuscular injury: during the operation of small needle knife surgery, there is generally no obvious sequelae, Vascular injury: local vascular injury leads to hematoma in the neck.3. Neuromuscular injury: in the process of small needle knife operation, damage to the cutaneous nerve or muscle, resulting in local numbness and muscle adhesion.