Blood pressure suddenly high, 202/106mmHg may be white coat hypertension, disease and other causes, in the emergence of the symptom should promptly identify their own reasons, according to the cause of treatment. 1. white coat hypertension: white coat hypertension can cause blood pressure suddenly high to 202/106mmHg, also refers to the measurement of blood pressure in the doctor’s office is greater than the normal value, the patient in the measurement of blood pressure, mental stress, resulting in blood pressure suddenly appeared to rise, but also accompanied by dizziness, headache and other symptoms. 2. Disease: If the patient has hyperthyroidism, cerebral hemorrhage and other diseases can also cause blood pressure abnormalities, usually due to endocrine changes caused by a sudden rise in blood pressure. In addition, when there is pheochromocytoma, it can also cause blood pressure to be suddenly high 202/106mmHg. Generally, this kind of disease is due to the indirect release of catecholamines, which causes blood pressure to increase, and it is also accompanied by panic, sweating and other symptoms. No matter what the cause of the blood pressure appears to rise, the patient should pay attention to, according to the cause of targeted treatment.