Patients appear dizzy after taking a hot bath, mainly consider the following reasons: 1, if patients take a long bath, it is easy to cause patients to sweat more. If the patient is not able to replenish water in time, resulting in insufficient effective circulation of blood, it is easy to cause the patient to appear dizziness. 2, the patient in the process of soaking in a hot bath, peripheral blood vessels will appear dilated, resulting in a drop in the patient’s blood pressure, insufficient effective circulation of blood, but also cause the patient’s brain tissue in ischemia, hypoxia, and cause the patient to appear dizzy symptoms. 3, the symptoms of dizziness after soaking in a hot bath, there are also It may be because the water temperature in the patient’s room is relatively high, there is a lot of water vapor, in this environment will lead to thin oxygen in the air, easy to cause the patient’s brain lack of oxygen and dizziness.