A low pressure of up to 110mmHg is considered severe hypertension and is dangerous. Class III hypertension is systolic blood pressure ≥180mmHg, and/or diastolic blood pressure ≥110mmHg. Low pressure up to 110mmHg is class III hypertension, which is a severe form of hypertension, and if the blood pressure is not controlled in time, the long term progression will cause damage to various target organs in the body, which is very dangerous. Hypertension can be controlled with antihypertensive drugs, such as captopril, nifedipine, valsartan and other drugs. Daily diet control, reduce salt intake, low-salt and low-fat diet, increase physical exercise to enhance physical fitness, daily monitoring of blood pressure, if there is any discomfort should be timely consultation, the use of medication please follow the doctor’s instructions.