The patient’s head is swollen and painful for the following reasons: first, it may be caused by neurological weakness, which is mostly caused by prolonged late nights, lack of sleep, mental tension, brain fatigue or various reasons. The second aspect, the patient’s head swelling pain may be a manifestation of elevated blood pressure, when the blood pressure will cause the patient’s head and facial blood vessels to dilate, manifesting as head swelling pain, and mainly to both sides of the temple swelling pain. Thirdly, the pain of head swelling may also be a symptom of cold and fever, so pay attention to the measurement of body temperature. Fourthly, the headache may also be a tension headache, which usually occurs under the stimulation of exertion.