How much is the normal value of high pressure and low pressure

High blood pressure and low blood pressure mainly refer to systolic blood pressure and diastolic blood pressure. Normal systolic blood pressure is generally 90 to 139mmHg, while diastolic blood pressure is generally 60 to 89mmHg.

When systolic blood pressure is higher than 139mmHg or diastolic blood pressure is higher than 89mmHg, it is usually judged as hypertension. Headache, tiredness or restlessness, arrhythmia, palpitations, tinnitus and other symptoms usually occur. It is necessary to follow the doctor's advice to apply pressor drugs for treatment, such as midodrine hydrochloride tablets, methylphenidate tablets, etc.