Soreness at the back of the neck may be due to physiological factors, or it may be a symptom of certain diseases, such as trauma, degenerative diseases, tumors, etc. It is recommended to consult a doctor in time to find out the cause of the disease. 1. Physiological factors: the common cause of soreness at the back of the neck is muscle fatigue at the cervical vertebrae, which mostly occurs in the long-term sedentary and standing staff, or the laborers who engage in low head work for a long period of time, and the soreness is related to the strain of soft tissues at this time. 2. Pathological factors (1) Trauma: If the patient’s neck is subjected to external force, resulting in local soft tissue injury, fracture, bone dislocation, etc., if the situation is not serious, it will produce soreness. If the situation is more serious, severe pain will occur. (2) Degenerative diseases: Soreness at the back of neck may be related to degenerative diseases of cervical vertebrae, such as cervical spondylosis, cervical disc herniation, cervical posterior longitudinal ligament ossification, etc. When the patient tilts his head, it can stimulate the local nerves, which in turn produces the local involvement pain, and then soreness at the back of the neck and the shoulders and other parts of the neck will be felt. (3) Tumor: Soreness at the back of neck may also be related to local soft tissue tumor or bony tumor. When the patient tilts his head, the bone activity will stimulate the tumor, and the growth of the tumor itself will also bring soreness. If the soreness at the back of the neck persists and does not get relieved, you should consult a doctor in time to clarify the cause of the disease and give targeted treatment.