Swelling and tightness at the back of the head while sleeping may be a physiological condition caused by improper posture, or it may be caused by high blood pressure or cervical spondylosis.
1. Physiological conditions: If the height of the pillow is not suitable when sleeping, too high or too low, and the hardness is not suitable, it will make the muscles in the back of the neck area be pulled, and may also cause swelling and pain in the back of the head area.
2. Hypertension: hypertensive patients, if the blood pressure control is not stable, the blood pressure is too high at night, may cause excessive congestion of the brain, can appear headache, head swelling, and in serious cases, can appear nausea, vomiting and other symptoms.
3. Cervical spondylosis: including cervical curvature straightening, cervical spondylosis and cervical spondylosis protrusion, which may cause muscle spasm contraction at the back of the neck, resulting in swelling and pain at the back of the head; also due to the compression of occipital nerves, swelling and discomfort at the back of the head.
Sleeping in the back of the head swelling, if except physiological conditions, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease after targeted treatment.