There are many reasons for headache and eye swelling in patients, and we need to pay attention to the degree of headache and eye swelling in patients. 1.If patients are fatigued, overuse of brain or poor air circulation or lack of sleep in daily life, which leads to brain nerve dysfunction, patients will have headache and eye swelling, but the degree is not too heavy. 2.If patients have headache on one side accompanied by eye swelling on one side, and in If the headache is accompanied by swelling of one side of the eye, with intensive attacks within a period of time, it is considered to be cluster headache. If the symptoms of eye swelling persist with headache on one side, it may be caused by glaucoma. When the patient’s eye pressure rises, there will be some pressure on the trigeminal nerve, which may lead to headache. 3. The patient’s headache and eye swelling may also be caused by elevated blood pressure, which can be measured to clarify. If the symptoms are then reduced after taking antihypertensive drugs, it is considered to be related to blood pressure.