Men’s neck towards the left side of the right side pain refers to the right side of the head and neck to the left side of the rotation of the right side of the pain, the common causes of pillow, trauma, thyroid tumors, cervical spondylosis and so on. 1. Falling pillow: if you sleep with improper neck posture, pillow too high or open the air conditioning wind caused by the neck cold, can cause static damage to the sternocleidomastoid muscle, trapezius muscle and other muscles and neck joints are misaligned, turn your head when the neck muscles are pulled to cause pain, which is a normal phenomenon, and generally can be gradually relieved after rest. 2. Trauma: Most people have a history of trauma, because of the violence caused by the skin of the neck, subcutaneous tissue injury or even cervical vertebrae fracture, and the pain will also appear when turning the head. 3. Thyroid tumor: thyroid tumor can cause thyroid enlargement and oppression of the surrounding tissues, and inflammation stimulation can cause tissue adhesion, and the soft tissues of the neck are pulled when turning the head, which can also cause pain. 4. Cervical spondylosis: Due to the herniated intervertebral disc, the effective volume in the spinal canal decreases, and the nerve root is compressed when the head is turned around, which can cause pain. Causes of pain on the right side of the head and neck when rotating to the left are more reasons, may also be related to frozen shoulder and other diseases, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, targeted treatment.