Swelling on both sides of the head may be caused by physiological factors, mental factors, vegetative nerve dysfunction, elevated blood pressure and other reasons. 1. Physiological factors: If you often stay up late, stress, overwork, it is easy to lead to insufficient sleep time, head swelling on both sides of the situation. 2. Mental factors: when the patient suffers from anxiety, depression and other mental illnesses, it will easily lead to the phenomenon of swelling on both sides of the head, accompanied by low mood, upset and irritable and so on. 3. Phytoneurological dysfunction: If the patient is highly nervous for a long time, it may lead to phytoneurological dysfunction, which may cause intracranial vasodilatation and contraction abnormality, resulting in swelling on both sides of the head. 4. Elevated blood pressure: When the patient has high blood pressure, if he/she does not take the medication in time or the antihypertensive medication is not used properly, it may lead to the increase of blood pressure and the symptom of swelling on both sides of the head. When the patient has two sides of the head swelling, should go to the hospital immediately, clear the cause of the disease under the guidance of the doctor active treatment, so as not to delay the condition.