Why Can an Aneurysm Be Silent?

Many unruptured brain aneurysms are small. When they are not pressing on brain tissue or nearby nerves, a person may feel completely normal. In fact, some are discovered by accident during imaging tests done for another reason, such as headaches, injury, or another medical concern. The Brain Aneurysm Foundation notes that unruptured aneurysms usually have no symptoms and are often found incidentally.

This silent nature can make aneurysms difficult to detect early. A person may go about daily life without knowing that a blood vessel has weakened. However, “silent” does not always mean harmless. Some aneurysms may grow over time, and a small number can rupture, causing bleeding around the brain. A ruptured brain aneurysm is a medical emergency.

Possible Symptoms of an Unruptured Aneurysm

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