Patients with sudden head swelling and pain are mainly considered for the following reasons: First, the most common clinical cause is the rapid increase in blood pressure, which is usually not specific for hypertension in the early stage, but if the patient’s blood pressure fluctuates more and rises more, it will cause vasodilation, which will easily cause the transparent structure of the meninges in the patient’s brain to be pulled, so that the patient will have head swelling and pain. Therefore, the patient may experience head swelling and pain. This kind of patients mostly take antihypertensive drugs irregularly or are stimulated by emotional tension, anger, anxiety, etc.; secondly, the sudden swelling and pain of the patient’s head should be considered to be caused by tension headache or migraine attack, tension headache is mostly due to mental tension and emotional anxiety, and the patient will show a sudden swelling and pain of the head with a feeling of binding; thirdly, the sudden swelling and pain of the patient’s head may also be caused by cold and fever diseases.