Working in a high temperature environment can cause hypertensive patients to experience fluctuations in blood pressure, which is detrimental to their health. In hypertensive patients, blood pressure is easily affected by changes in external temperature. Short-term work in a high-temperature environment will make hypertensive patients appear emotional irritability, generally due to sympathetic nerve excitation, respiratory heartbeat accelerated, so that the blood pressure reflexively increased. If working in a hot environment for a long time, the patient will experience dilation of peripheral capillaries, while large amounts of sweating will lead to a decrease in blood volume, which can cause the occurrence of hypotension. Some patients may experience fainting, stroke, myocardial ischemia and other dangerous situations due to fluctuations in blood pressure. It is recommended that hypertensive patients should avoid working in a hot environment. When the weather is hot, take appropriate means to cool down, or go to a cool place to rest for a while and pay attention to water replenishment. If the body has uncomfortable symptoms, timely consult a doctor, you can adjust the dose of hypertension medication under the guidance of the doctor.