Blurred vision that appears without warning. Or a deep, persistent pain in the abdomen that doesn’t seem to have an…

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Some are discovered during ultrasound, CT, or MRI examinations performed for unrelated reasons.

Others are identified through screening programs.

This does not mean everyone should undergo routine whole-body scans.

Screening recommendations depend on age, smoking history, family history, and other risk factors.

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Unnecessary imaging can lead to incidental findings, additional procedures, costs, and sometimes exposure to radiation.

A healthcare professional can help determine whether screening is appropriate.

13. How Doctors Diagnose an Aneurysm

The diagnostic approach depends on where the aneurysm is suspected.

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Brain aneurysms

Doctors may use CT angiography, MR angiography, or other vascular imaging techniques.

When a ruptured aneurysm is suspected, emergency evaluation often begins with a CT scan of the head.

Additional testing may be needed depending on the findings and clinical circumstances.

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Abdominal aortic aneurysms

Abdominal ultrasound is commonly used for screening.

It is noninvasive and can measure the diameter of the abdominal aorta.

CT imaging may be used when more detailed assessment is necessary.

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Thoracic aortic aneurysms

CT, MRI, and echocardiography may be used depending on the location of the suspected aneurysm and the clinical situation.

Imaging helps determine the size, location, and characteristics of the abnormal blood vessel.

These details guide treatment decisions.

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14. Does Every Aneurysm Require Surgery?

No.

Not every aneurysm needs immediate surgery.

Some small, stable aneurysms can be monitored with periodic imaging.

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Doctors consider several factors, including size, growth rate, location, symptoms, and the person’s overall health.

For some aneurysms, treatment may involve open surgery or a minimally invasive endovascular procedure.

Brain aneurysms may sometimes be treated with surgical clipping or endovascular techniques.

Aortic aneurysms may require open repair or stent-graft placement, depending on their anatomy and other factors.

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Each treatment carries potential benefits and risks.

The decision should be made with an appropriate specialist.

A ruptured aneurysm, however, requires emergency medical care.

15. Can You Reduce Your Risk?

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Not every aneurysm can be prevented.

Age, inherited conditions, and family history are outside a person’s control.

However, several steps can support vascular health.

Stop smoking. Avoiding tobacco is one of the most important ways to reduce the risk of abdominal aortic aneurysm and other cardiovascular diseases.

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Manage blood pressure. Follow medical advice, take prescribed medication as directed, and monitor blood pressure when recommended.

Maintain cardiovascular health. Regular physical activity, a balanced diet, and management of cholesterol and diabetes can support overall vascular health.

Discuss family history. If a parent or sibling has had an aneurysm, ask whether screening or specialist assessment is appropriate.

Attend recommended screenings. Eligible individuals may benefit from a one-time abdominal aortic ultrasound.

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Follow monitoring plans. People already diagnosed with an aneurysm should attend scheduled imaging appointments.

These measures cannot guarantee prevention, but they can help reduce certain risks and support early detection.

16. When Should You Call Emergency Services?

Certain symptoms require immediate action.

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Seek emergency medical help immediately for:

• A sudden, extremely severe headache that reaches maximum intensity almost immediately.

• Sudden severe chest, back, or abdominal pain, especially with weakness or fainting.

• Collapse, loss of consciousness, or signs of shock.

• Sudden facial drooping, arm weakness, speech difficulty, or other stroke-like symptoms.

• A severe headache accompanied by neck stiffness, vomiting, or neurological changes.

Do not drive yourself if you suspect an aneurysm rupture or another serious vascular emergency.

Call your local emergency number.

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If someone becomes unresponsive, follow the emergency dispatcher’s instructions.