Cervical spondylosis may cause symptoms such as limited movement in and around the neck, head discomfort, abnormal sensation of the limbs, etc., as follows: 1. limited movement in and around the neck: such lesions will first lead to very obvious symptoms of stiffness, pain and unfavorable movement in and around the neck, and patients will often feel that their necks are very stiff and their mobility is reduced, and that they may experience a distinctive noise in the process of movement. 2. Head discomfort: These lesions may cause patients to experience head discomfort mainly due to vertigo, such as frequent dizziness, blackness, weakness, and frequent desire to sleep. Sometimes, the abnormal symptoms of stepping on cotton in the lower extremities may also occur.