A blood pressure of 200/140 mmHg after exercise is very dangerous. This type of hypertension is a hypertensive emergency and can easily cause severe cerebrovascular lesions, cardiac lesions, abnormal kidney function and macrovascular lesions, for example, some patients may develop severe acute cerebrovascular disease, and in the most severe cases, subarachnoid hemorrhage or rupture of cerebral arteries may occur. Also, severe increased blood pressure leads to increased afterload on the heart, which can lead to acute heart failure and severe impairment of kidney function. In case of severe blood pressure elevation, it is also easy to lead to large vessel lesions, such as aortic coarctation. Patients must be treated regularly, and it is recommended to go to the hospital in time to lower the blood pressure by about 25% in the initial stage, that is, within 1 hour, and then gradually reduce the blood pressure to normal in 1-2 days thereafter.