Neck tendon pain, the common causes include the following: 1, fallen pillow: in the process of sleep, if the neck posture is improper, it will cause serious spasm and tension of the neck muscles and tendons, the patient will have neck pain, limited activity, even accompanied by spasm of the trapezius muscle, there will be serious pain when pressed, through local heat treatment and massage, massage, can make clinical symptoms improved. 2, cervical spondylosis. The acute attack of cervical spondylosis will compress the nerves, causing reflex spasm and tension in the neck muscles, which will also lead to neck pain symptoms, accompanied by restricted cervical movement, and in severe cases, accompanied by clinical manifestations such as radioactive pain in the upper limbs, dizziness, nausea, chest tightness and panic, etc. The cause of the disease can be determined through MRI examination. If warp pain occurs in the neck, it must be diagnosed and treated early to avoid serious adverse consequences, and also to relieve clinical symptoms. Patients should strengthen the exercise of neck muscles in ordinary life to avoid the occurrence of drop pillow and cervical spondylosis.