Hair swelling is a sign of tension headache, hypertension, brain diseases that cause increased intracranial pressure, as follows: a. Tension headache can appear unilateral or bilateral head swelling, distension, tightness, pressure, heaviness, etc. It may be accompanied by dizziness, dizziness, insomnia, anxiety, depression, etc. It is generally related to mental overstrain, exertion, poor sleep, and can be found during physical examination as local The local muscle tenderness or pressure points can be found during physical examination, symptomatic pain treatment can be carried out, try to relax, rest, or give relaxation of the muscles of ethylprednisolone hydrochloride, baclofen relief. Second, hypertension disease can cause hair swelling, you should measure blood pressure, take long-acting antihypertensive drugs on time every day, the blood pressure will be normal control can be relieved. Third, seen in a variety of brain diseases, such as large cerebral infarction, cerebral hemorrhage, brain tumors, encephalitis, traumatic brain injury and so on, can cause increased intracranial pressure, will cause the symptoms of hair swelling, need to do head CT or magnetic resonance examination to confirm the diagnosis.