Normally high blood pressure does not cause toothache, but it is possible to develop a toothache. Typically, patients with high blood pressure may have no obvious symptoms in the early stages, and as the disease progresses, headaches, dizziness, and a variety of other discomforts may occur, but they do not usually result in a toothache. However, for patients with severely high blood pressure, the pulp of the teeth may become easily congested, which in turn may lead to a toothache. At this point, patients are usually accompanied by other discomforts such as dizziness. There are more causes of toothache, such as gingivitis, periodontitis and other oral diseases, therefore, it is recommended that hypertensive patients with toothache should actively seek medical attention to clarify the diagnosis and take targeted treatment measures. At the same time, antihypertensive drugs should be used reasonably to control the blood pressure level. Attention should be paid to light diet and oral hygiene in daily life.