If the measured blood pressure value is high in early pregnancy, it is mainly related to transient hypertension caused by previous hypertension, or excessive stress before the examination and other factors, the specific causes and treatment methods are as follows: 1. Previous hypertension: it may be the original hypertensive disease due to no symptoms have not been detected, early pregnancy through the maternity examination, and the idiopathic increase in blood pressure caused by pregnancy, most of which is only in about 20 weeks of pregnancy The majority of idiopathic blood pressure increases caused by pregnancy do not appear until about 20 weeks of pregnancy. If the blood pressure is mildly elevated in early pregnancy and does not cause symptoms such as dizziness and nausea, there is no need to take antihypertensive medication and regular observation and monitoring of blood pressure values is sufficient. However, it is necessary to adjust the diet, such as controlling the salt intake, and to maintain emotional stability and avoid emotional excitement. If the blood pressure is relatively high, and accompanied by dizziness, nausea and other uncomfortable symptoms, it is recommended to take antihypertensive drugs to control blood pressure under the guidance of a clinician; 2. Transient hypertension: excessive stress, or lack of sleep before testing blood pressure, may cause transient hypertension. It can be measured again after sufficient rest. If the blood pressure is only transient high, it can be treated without antihypertensive treatment, usually pay more attention to rest, ensure sufficient sleep, relax and avoid emotional anxiety.