Did You Know?: Brain Aneurysm Statistics and Facts

Know The Facts

  • As many as 1 in 20 people will develop a Brain Aneurysm in their lifetime; that's up to 15 million people in the U.S.
  • Women, particularly between the ages of 40-60, are 50% more at risk of developing a Brain Aneurysm.
  • African Americans and Hispanics are 25% more at risk of developing a Brain Aneurysm.
  • There are an estimated 40,000 Brain Aneurysm ruptures each year.  Of those who experience a rupture, nearly 50% will fall victim to the rupture within days and over 75% of all ruptures result in death or permanent, lifelong disability
  • 4 out of 7 people who recover from a ruptured brain aneurysm will have disabilities.
  • Brain aneurysms are most prevalent in people ages 35 – 60, but they do not discriminate and occur in children and seniors alike. The median age when a Brain Aneurysm occurs is 50 years old and there are no warning signs in many instances. Most aneurysms develop after the age of 40.
  • Women and African Americans are almost 50% more likely to develop a Brain Aneurysm
  • Most aneurysms are small, about 1/8 inch to nearly one inch, and an estimated 50 to 80 percent of all aneurysms do not rupture during the course of a person’s lifetime. Aneurysms larger than one inch are referred to as “giant” aneurysms and can pose a particularly high risk and can be difficult to treat.
  • 10 – 15% of patients diagnosed with a brain aneurysm will harbor more than one aneurysm