Brain Aneurysm Risk Factors

Risk factors that doctors and researchers believe contribute to the formation of brain aneurysms:

  • Smoking

  • High blood pressure or hypertension

  • Congenital resulting from inborn abnormality in artery wall

  • Family history of brain aneurysms

  • Age over 40

  • Gender, women compared with men have an increased incidence of aneurysms at a ratio of 3:2

  • Other disorders: Ehlers-Danlos Syndrome, Polycystic Kidney Disease, Marfan Syndrome, and Fibromuscular Dysplasia(FMD)

  • Presence of an arteriovenous malformation (AVM)

  • Drug use, particularly cocaine

  • Infection

  • Tumors

  • Traumatic head injury

Risk factors that doctors and researchers believe contribute to the rupture of brain aneurysms:

  • Smoking

  • High blood pressure or hypertension

  • African-Americans at twice the rate of rupture of whites (a 2.1:1 ratio)

  • Hispanics at nearly twice the rate of rupture of whites (a 1.67:1 ratio)


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