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High blood pressure dangers: Hypertension's effects on your body

High blood pressure emergencies

High blood pressure usually is an ongoing condition that slowly causes damage over years. But sometimes blood pressure rises so quickly and seriously that it becomes a medical emergency. When this happens, treatment is needed right away, often with hospital care.

In these situations, high blood pressure can cause:

  • Blindness.
  • Chest pain.
  • Complications in pregnancy, such as the blood pressure-related conditions preeclampsia or eclampsia.
  • Heart attack.
  • Memory loss, personality changes, trouble concentrating, irritable mood or gradual loss of consciousness.
  • Serious damage to the body's main artery, also called aortic dissection.
  • Stroke.
  • Sudden impaired pumping of the heart, leading to fluid backup in the lungs that results in shortness of breath, also called pulmonary edema.
  • Sudden loss of kidney function.