Silent But Serious: Why Some Brain Aneurysms Show No Symptoms
Many brain aneurysms show no symptoms until rupture - posing serious risks. Learn about the silent nature of aneurysms, rupture risks, and the importance of early detection from our specialized brain aneurysm clinic in Singapore, the Supreme Vascular and Interventional Clinic.

Silent But Serious: Why Some Brain Aneurysms Show No Symptoms
Believe it or not, brain aneurysms often show no symptoms and go unnoticed until they rupture. In fact, an estimated 3% of people in Singapore have a brain aneurysm, with most not knowing they have one. A brain aneurysm is a bulge in a blood vessel in the brain, and if it ruptures, this can lead to a potentially fatal hemorrhagic stroke. Thusly, just because an aneurysm doesn't show symptoms, this doesn't mean it doesn't present a risk, as there are an estimated 500,000 deaths worldwide each year caused by ruptured brain aneurysms. Yet, you may find yourself wondering why some aneurysms don't show symptoms and what your risk is of having a brain aneurysm that ruptures. To help you better understand your risk, keep reading to learn more about the silent nature of aneurysms as well as the importance of early detection.
What is a Brain Aneurysm?
A brain aneurysm is a bulging, weakened area in a blood vessel within the brain that often looks like a berry hanging from a stem. While many brain aneurysms are small and not a cause for concern, they can balloon and rupture, leading to a potentially life-threatening hemorrhage. A ruptured brain aneurysm is so dangerous because it causes bleeding in your brain, which can cause stroke, brain damage, coma, and even death. Aneurysms are most likely to occur in the Circle of Willis (a network of arteries at the base of the brain) and at bifurcation points.
Why Many Aneurysms Don't Show Symptoms
The vast majority of brain aneurysms don't show symptoms going undetected and may not be discovered unless a patient undergoes an MRI for an unrelated issue. This is because the brain does not feel pain directly, and an unruptured aneurysm won't cause symptoms unless it puts pressure on nearby nerves or tissue. Whether or not an aneurysm will show symptoms then depends on its size and location. The fact is that most aneurysms are small (less than 10 millimeters), and unless they form near a nerve, or they grow large enough to press on a nerve, they are unlikely to cause symptoms unless they rupture.
When Symptoms Do Appear
Unfortunately, symptoms generally don't appear unless an aneurysm ruptures. It is then essential that you know the signs that can indicate a ruptured aneurysm, as prompt treatment can greatly increase your prognosis. Common symptoms that can indicate a brain aneurysm include:
- Sudden, Severe "Thunderclap" Headache
- Visual Disturbances
- Eye Pain
- Blurry Vission
- Drooping Eyelid
- Seizures
- Neck Pain
- And Speech Difficulty
If you experience potential aneurysm symptoms, you must seek immediate emergency medical treatment. While ruptured brain aneurysms dangerous and life-threatening, prompt treatment can greatly increase your survival odds.
The Hidden Risk of Silent Aneurysms
Many people with unruptured aneurysms have no symptoms and live normal lives. Aneurysms are often called a silent killer or ticking time bombs as they can rupture unexpectedly, leading to stroke, brain damage, or death if untreated. The scary thing is that a rupture can happen without warning, and the risk of an aneurysm rupturing increases over time. The good news is that you are not without options for reducing your risk. This makes it imperative that you know the risk factors for developing a brain aneurysm, which include smoking, high blood pressure, family history, age, and genetic conditions such as Ehlers-Danlos syndrome. If you are considered part of a high-risk group, you may want to consider routine screening, as this could help your doctors discover, track, and treat an aneurysm before it ruptures.
How Brain Aneurysms Are Detected
Considering most aneurysms do not cause symptoms, they are most often discovered during testing for other conditions. However, in instances where a patient is experiencing symptoms such as headaches or dizziness, a brain aneurysm specialist may decide to run tests to look for signs of a brain aneurysm. Common tests that are used to diagnose a brain aneurysm include:
- MRI/MRA Scans
- Cerebral Angiography
- And CT Scans
What You Can Do: Awareness and Prevention
While brain aneurysms often show no symptoms until they rupture, this doesn't mean that you can't take steps to protect yourself. Here are just a few ways that you can take control of your health and protect yourself from a brain aneurysm rupture.
- Know Your Family History: Since brain aneurysms often run in families, it is important to discuss your family history with your doctor, as you may need to undergo regular screenings.
- Manage Your Health: Taking care of your health by maintaining a healthy weight, managing your blood pressure, and quitting smoking can significantly reduce your risk of developing an aneurysm.
- Stay Alert to Subtle Symptoms: When aneurysms do present symptoms, people often make the mistake of assuming they're harmless. However, if you experience visual changes, facial pain, a sudden, severe headache, or unexplained neurological conditions, you should seek medical attention.
- Discuss Screening Options: If you're at a high risk of developing a brain aneurysm, talk to your doctor about screening options.
Why Choose A Specialized Brain Aneurysm Clinic
If you're concerned that you may have an unruptured aneurysm, it's essential that you schedule a consultation with a specialized brain aneurysm clinic in Singapore as soon as possible. The fact is that early detection can be critical in saving lives, even when symptoms are absent. This can give you peace of mind as you will have access to the proper imaging tests and personalized diagnosis, as well as the latest treatment options if an aneurysm is detected.
When it comes to brain aneurysms, the fact is that silent doesn't mean safe. What makes aneurysms so dangerous is that they often don't show symptoms until they rupture, which can quickly turn fatal. This makes taking a proactive approach to aneurysm diagnosis and treatment essential. If you have risk factors and are concerned you could have a brain aneurysm, we encourage you to consider booking a screening with our brain aneurysm specialist, Dr. Manish Taneja, at our specialized brain aneurysm clinic in Singapore today.
Consult a Seasoned Brain Aneurysm Specialist
A consultation at our brain aneurysm clinic in Singapore allows for timely intervention and improved outcomes. It's important to receive professional treatment and care in the hands of the right doctor for you or your loved one.
The Supreme Vascular and Interventional Clinic offers state-of-the-art care and latest treatment options with brain aneurysm specialist, Dr. Manish Taneja. The newer technologies available for treating brain aneurysms enables him to treat almost all types of brain aneurysms using interventional techniques without open surgery. Arrange your appointment today.

Brain Aneurysm Resources
Explore our brain aneurysm resources. Understanding a brain aneurysm often involves learning across several areas.
Put Brain Aneurysm on Your Health Radar
Did you experience the worst headache of your life? Thoughts could be racing through your mind. A brain aneurysm is a weak spot in a blood vessel in the brain that can change over time. The key concern is when an aneurysm ruptures, which can disrupt blood flow, affect brain tissue, and lead to serious brain damage. Controllable conditions like high blood pressure can increase this risk and treatment options can depend on the condition. Surgical clipping is one option that prevents blood from entering the weakened area. In many cases, minimally invasive treatments can also be used to restore normal blood flow and reduce risk. We have created structured guides to help you explore each stage in more detail:
A simple (computed tomography) CT scan could be just what the doctor ordered and the first step in early detection and prevention of a brain aneurysm. Come in for an easy consultation with our brain aneurysm specialist in Singapore to be on your health radar.
Other Health Conditions
The Supreme Vascular and Interventional Clinic is your “go-to” facility for various conditions and treatments. To arrange an appointment with Dr. Manish Taneja, our brain aneurysm specialist, contact us. You can also call us at (+65) 6904 8084 for a consultation.









