The causes of head swelling and dizziness in patients are mainly considered to be high blood pressure, environment, lack of sleep or insomnia, as follows: First, high blood pressure: caused by high blood pressure, if blood pressure rises suddenly, patients will show symptoms of dizziness, head swelling and even nausea. Second, the environment: If the patient’s blood pressure does not fluctuate, it may also be related to environmental factors, such as patients in a hot and stuffy environment with poor air circulation, which can cause the patient’s brain to be in a state of chronic lack of oxygen, it will manifest as head swelling and dizziness. Third, lack of sleep or insomnia: mainly considered to be related to problems such as lack of sleep or insomnia, because people in the case of poor rest, long-term sleep quality is relatively poor, it will easily lead to the patient’s brain cells in a state of chronic lack of oxygen, there will be dizziness, head swelling, memory loss, slow reaction, etc..