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Arteriovenous Malformations of the Brain Causes & Risks

Causes

The cause of arteriovenous malformations is unknown. However, researchers believe that they occur as a fetus is developing and the arteriovenous malformations are present when you are born.

Risk Factors

A risk factor is something that increases your chance of getting a disease or condition.

If you have any of these risk factors, tell your doctor:

  • Family history—some types of arteriovenous malformations are due to genetic defects that can be passed on from one generation to the next. Individuals with a family history of arteriovenous malformations are at higher risk of developing arteriovenous malformations.
  • History of bleeding—some types of arteriovenous malformations are associated with an increased risk of bleeding. Individuals with unexplained recurrent bleeding may be at higher risk of having arteriovenous malformations.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2026 EBSCO Publishing All rights reserved.

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