Neck pain after thyroid cancer surgery may be caused by wound not fully healed, neck muscle strain, cervical spondylosis and other reasons. 1. Wound not fully healed: post-thyroid cancer surgery may cause pain in the neck incision area, and some skin nerves will be affected during the surgery, if the incision area is not fully healed, it may also lead to the phenomenon of post-thyroid cancer neck pain. 2. Neck muscle strain: if the patient sits for a long time with his head lowered and the neck muscles are tense for a long time, it may cause neck muscle strain, which may lead to postoperative neck pain after thyroid cancer surgery. 3. Cervical spondylosis: cervical spondylosis is caused by the compression of intervertebral discs or hyperplasia to the nerve root, which may cause discomfort and lead to postoperative neck pain and numbness after thyroid cancer surgery. When patients have neck pain after thyroid cancer surgery, it is recommended to go to the hospital in time to determine the cause of the disease and then standardize the treatment under the guidance of the doctor.