The following causes are common for posterior neck pain: 1. Neck muscle strain: If the patient often works with low head and does not rest properly, it will lead to obvious strain on the muscles of the neck, which will manifest as clinical symptoms such as stiffness, restricted activity, and soreness at the back of the neck. After timely correction and massage treatment, the clinical symptoms can be improved. 2. Cervical spondylosis: the cervical intervertebral disc will stimulate the nerves, causing spasm and stiffness of the neck muscles, and at the same time, there will be clinical symptoms of neck pain. Early traction therapy, ultrashort wave therapy, and oral administration of celecoxib and loxoprofen sodium can relieve the clinical symptoms of pain and stiffness in the back of the neck. It is important to diagnose and treat pain in the back of the neck early to try to avoid serious cervical spondylosis. If cervical spondylosis is produced, it is usually not easily cured and can affect the patient’s normal life, work, and even sports.