A big difference in blood pressure within a day may have the effect of endothelial damage, damage to organs in the body, and lesions at the bifurcation of blood vessels, so after the appearance of this phenomenon, it is necessary to carry out examinations and treatments as soon as possible. 1. Vascular endothelial damage: too large a difference in blood pressure pressure may allow blood to the arterial vasculature for impact, so that the endothelium of these blood vessels by mechanical damage, may aggravate the degree of atherosclerosis, which is easy to make the body’s condition into a vicious circle. 2. Damage to organs in the body: the blood vessels of the heart, kidneys and brain of the patient will have problems with blood supply to the organs because of the excessive pressure difference in blood pressure, which may lead to organ damage due to ischemia and lack of oxygen in the human organs. 3. Vascular bifurcation lesions: the blood pressure gap is too large may lead to the human body’s large blood vessels have a narrowing of the situation, may lead to serious vascular bifurcation lesions, such as acute cerebral hemorrhage and myocardial infarction and so on. If you have symptoms such as dizziness or vomiting, you should monitor your blood pressure as soon as possible and take measurements several times a day, and if there are any abnormalities, you should cooperate with your doctor as soon as possible for treatment.