Health Care

3 Myths and Facts About Brain Aneurysms and Strokes

An older woman laughs with her doctor during a visit.
Choose the health content that's right for you, and get it delivered right in your inbox

Do you know the difference between a stroke and a brain aneurysm? How to tell the symptoms apart? And who is most likely to have these conditions? Brain Aneurysm Awareness Month (September) is a good time to answer these questions and inform yourself about the differences and similarities between these two serious neurological conditions.

Myth: Strokes and Brain Aneurysms Are the Same Thing

Fact: Strokes and aneurysms aren’t the same condition, but they’re related.

Strokes and brain (cerebral) aneurysms both happen in your brain, but they’re not the same thing.

What Is a Brain Aneurysm?

A cerebral, or brain, aneurysm is a bulge in a weak spot of a brain artery wall. In a brain scan, an aneurysm can look like a berry on the stem of a plant. Most people have weak spots in the lining of their arteries and, fortunately, most aneurysms are small, cause no symptoms and do not rupture.

When aneurysms do rupture, they cause bleeding (hemorrhaging) in the brain, or a hemorrhagic stroke. In this way, aneurysms can lead to some types of strokes. Ruptured brain aneurysms can also cause brain damage and coma, and in the most unfortunate circumstances, death. About 25% of people with a ruptured brain aneurysm do not survive the first 24 hours after the event, and an additional 25% of people will pass away from complications within six months.

What Is a Stroke?

A stroke is different than a brain aneurysm. Strokes can be ischemic, where an artery is blocked, preventing blood from reaching the brain. Strokes can also be hemorrhagic, which happens when a blood vessel bursts and blood gets in parts of the brain where it shouldn’t be.

Something that ruptured brain aneurysms and strokes have in common is that they are both medical emergencies. Get immediate medical help by calling 911 for symptoms related to either condition.

Myth: You Can’t Prevent a Stroke or Brain Aneurysm, They Just Happen Suddenly

Fact: Strokes and aneurysms do occur suddenly, but they share several risk factors — some of which are preventable.

Risk Factors You Can Control

You can control some of the most significant risk factors for brain aneurysms and strokes, like these lifestyle factors:

  • Drug abuse: Certain illicit drugs can raise your blood pressure significantly, which is a significant risk factor for strokes and aneurysms
  • Hypertension (high blood pressure): Clots and bleeding in the brain can stress the walls of your blood vessels
  • Smoking: Tobacco use damages your blood vessels and raises your risk of stroke significantly
  • Weight: Excess weight strains your heart and blood vessels

Additionally, health conditions like diabetes, heart disease and high cholesterol can all raise your risk of a brain aneurysm or stroke. Accidents like head trauma and illnesses like brain tumors and a malformation of the arteries and veins and veins also increase your risk of aneurysms and stroke.

Risk Factors Beyond Your Control

The brain aneurysm and stroke risk factors that you can’t control are:

  • Age: Although they’re more common in people who are 40 or older, anyone can experience an aneurysm at any age. Aneurysms are rare among children, and most aneurysm ruptures occur between the ages of 30 and 60. Likewise, the older you are, the more likely it is that you’ll have a stroke. However, as many as one in seven strokes occur in adolescents.
  • Heredity: You’re more likely to have an aneurysm or stroke if an immediate family member has had one.

Myth: You Can’t Tell the Difference Between Brain Aneurysm Symptoms and Stroke Symptoms

Fact: Brain aneurysm ruptures and strokes may share symptoms, but there are some key differences between them.

In some cases, large brain aneurysms could press on parts of the brain, mimicking stroke symptoms like speech problems, vision issues and a loss of balance.

However, unlike strokes, most brain aneurysms don’t have any symptoms — until they bleed or tear.

Symptoms of a Brain Aneurysm Rupture

When a brain aneurysm ruptures, you’ll feel a sudden, incapacitating headache, and you might vomit or lose consciousness. Other brain aneurysm symptoms include:

  • A stiff neck
  • An enlarged pupil
  • Confusion or clumsiness
  • Pain above or around the eye
  • Jerking movements, like convulsions
  • Weakness or numbness in the face

Stroke Symptoms

Like a brain aneurysm rupture, stroke symptoms can be sudden. However, unlike an aneurysm, stroke symptoms could also develop over a few hours or days. Specific stroke symptoms include:

  • A transient ischemic attack, or a stroke-like attack that precedes a major stroke
  • An inability to lift the arms
  • Difficulty swallowing
  • Drooping on one side of the face
  • Numbness or paralysis on one side of the body

Most importantly, ruptured brain aneurysms and strokes are both emergencies that need immediate medical attention. Call 911 if you suspect either of these conditions in a loved one.

To read more about strokes, download the guidebook on stroke prevention or get a printable stroke-risk survey and take an important step in protecting your whole health.

Compassionate Neurological Care for Your Peace of Mind

Consider AdventHealth your partner in advanced neurological care.

The AdventHealth Neuroscience Institute offers minimally invasive treatments for people with a variety of neurological and neurosurgical conditions. The institute is one of only a few medical centers in the country to offer interventional neuroradiology — a procedure that enables neurosurgeons to reach aneurysms in highly sensitive areas of the brain. We are honored to be recognized by U.S. News & World Report as the best hospital in Florida for neurology and neurosurgery.

If you or someone you know has a neurological concern, you deserve whole-person care from specialists who are dedicated to helping you heal in body, mind and spirit. Find helpful resources or learn more about our programs.

Recent Blogs

A Woman Walks Across a Pedestrian Bridge in the Fall
Steps Toward Success: 10 Ways Walking After Bariatric Surgery Can Transform Your Weight Loss Journey
A doctor and a patient read a tablet.
Why Everyone Needs a Primary Care Physician
Bariatric Surgery and Bowel Habits: Tips for a Smooth Transition
A Woman Sits at a Table with a Cup of Tea Blowing Her Nose
Is It a Cold, the Flu, COVID-19 or Seasonal Allergies?
7 Ways Bariatric Surgery Can Improve Your Life Beyond the Scale
View More Articles