The left tendon of the neck hurts when pressed, which may be caused by pillow fall, fasciitis, cervical spine disease, rotator cuff injury, etc. According to the cause of the disease, general treatment, physical therapy, medication and surgical treatment can be performed. 1. Falling pillow: falling pillow caused by poor sleeping posture and inappropriate pillow can lead to neck muscle spasm and left tendon pain. After the pillow need to pay attention to rest, reduce the neck muscle activities, oral ibuprofen and other drugs as prescribed by the doctor to relieve pain, the feasibility of local hot compresses to accelerate blood circulation, relieve muscle spasm, but also under the guidance of the doctor to carry out the neck of the moderate exercise activities. 2. Fasciitis: Repeated pulling of the soft tissue of the neck fascia can cause local aseptic fasciitis, causing left tendon pain. Oral celecoxib and other anti-inflammatory and analgesic drugs can be used to treat it, and at the same time, we need to pay attention to the rest of the neck and keep warm to avoid being cold. 3. Cervical spine disease: cervical disc herniation compresses the nerve root of the left side of the neck, which can lead to the performance of the left side of the neck tendon pain. It is necessary to pay attention to the rest of the neck, feasible neck traction, massage therapy, can be applied to the analgesic treatment of Loxoprofen sodium, the application of methylcobalamin for the treatment of nutritional nerves, and the serious condition requires surgical treatment. 4. Rotator cuff injury: a few rotator cuff injuries can radiate to the neck, and the left tendon can be involved in pain symptoms. Rotator cuff injury needs timely medical consultation and treatment, pay attention to shoulder rest and braking, anti-inflammatory and analgesic treatment can be carried out through ultrashort wave, and arthroscopic and other surgical treatments are needed when the injury is serious. When the left side of the neck tendon pressure pain, need to consult a doctor, help early relief of pain and other uncomfortable symptoms.