The reasons for a blood pressure of 190 mmHg without symptoms may be multifaceted. Hypertension may be a slowly progressive process in which the patient gradually becomes tolerant to mild increases in blood pressure, and when the blood pressure gradually rises to 190 mmHg, the patient still does not feel any discomfort. A blood pressure of 190 mmHg may be accompanied by mild symptoms, but the patient does not feel that the symptoms are related to the elevated blood pressure and therefore feels no symptoms of a blood pressure of 190 mmHg. In addition, in diabetic and elderly patients, the disorder of the vegetative nerve function causes the appearance of insensitivity to symptoms despite a sharp increase in blood pressure. The absence of symptoms in patients with blood pressure of 190 mmHg may also be due to high blood pressure, but functional changes in the target organs are not obvious, and numerous reasons may cause the corresponding condition to exist.