Many people have experienced head swelling, the formation of the following main reasons: 1, may be related to the environment, such as patients in poor air circulation, warm or relatively dry environment prone to hair swelling problems. 2, the patient’s head swelling may be caused by increased blood pressure fluctuations, patients should pay attention to blood pressure measurement, can be clarified by self-test blood pressure. 3, patients often head swelling may also be The patient’s head is also likely to be related to tension headache, such as the patient’s head tightness and head swelling pain after exertion and mental tension.