# What is the difference between a brain aneurysm and a brain hematoma (cerebral hematoma)? Canonical page: https://clinicsjo.com/en/faq/ma-al-farq-bayna-tamaddud-al-awiya-al-damawiya-wa-tajammu-al-dam-fi-al-dimagh Language: en Category: neurology Publisher: ClinicsJo Published: 2026-09-13T08:09:50.898Z Content updated: 2026-09-13T08:09:50.898Z Translation (ar): https://clinicsjo.com/ar/faq/ma-al-farq-bayna-tamaddud-al-awiya-al-damawiya-wa-tajammu-al-dam-fi-al-dimagh Brain aneurysm and brain hematoma, also known as cerebral hematoma, are two serious medical conditions that affect the brain, but they differ in their nature and direct causes. An aneurysm is a weakness in the wall of an artery in the brain that causes it to bulge or dilate, while a brain hematoma refers to an accumulation of blood inside or around the brain's tissues, which is often the result of this aneurysm rupturing or due to other causes. ## Brain Aneurysm A cerebral aneurysm (also known as a brain aneurysm) is a weak spot in the wall of an artery in the brain that bulges and fills with blood. This bulge can press on surrounding brain tissue and nerves. In some cases, the aneurysm may rupture, leading to leakage of blood into the brain or the surrounding area, which is called a hemorrhage [\[1\]](). - **Types:** There are three main types of cerebral aneurysms: saccular (the most common and berry-like), fusiform (dilating on all sides of the artery), and mycotic (caused by an infection that weakens the arteries) [\[1\]](). - **Causes and Risk Factors:** An aneurysm can be present from birth or develop later due to a weakness in the blood vessel wall. Risk factors include high blood pressure, smoking, a family history of aneurysms, and certain conditions such as polycystic kidney disease [\[2\]](). - **Symptoms:** Most aneurysms do not show symptoms until they become very large or rupture. If they are large, they may cause pain behind the eye, numbness, weakness on one side of the face, or changes in vision [\[1\]](). ## Brain Hematoma (Cerebral Hematoma) A brain hematoma is an accumulation of blood within the skull, which can occur inside the brain tissue itself (intracerebral hemorrhage) or in the spaces surrounding the brain. This accumulation is often the result of a ruptured aneurysm, but it can also occur due to head trauma, uncontrolled high blood pressure, or bleeding disorders [\[2\]](). - **Outcomes:** When an aneurysm ruptures, it causes severe bleeding that leads to the accumulation of blood. This bleeding can result in a hemorrhagic stroke, brain damage, coma, or even death [\[1\]](). - **Symptoms:** A ruptured aneurysm usually causes a sudden, severe headache described as the "worst headache of life." Other symptoms may include nausea, vomiting, stiff neck, sensitivity to light, seizures, or loss of consciousness [\[1\]](). ## Diagnosis and Emergency Treatment Diagnosis of both conditions requires imaging tests of the brain, such as a computed tomography (CT) scan, magnetic resonance imaging (MRI), or cerebral angiography [\[2\]](). In cases where a hemorrhage is suspected, a CT scan is often the first test to determine if blood has leaked into the brain [\[1\]](). An unruptured aneurysm may not require immediate treatment, and doctors may recommend periodic monitoring, especially if it is very small. However, risk factors such as high blood pressure must be managed, and smoking cessation is recommended [\[1\]](). A ruptured aneurysm, however, is a medical emergency that requires immediate treatment. Treatment includes surgery to seal the aneurysm (such as microsurgical clipping) or endovascular procedures (such as platinum coils) to stop blood flow to it [\[2\]](). You can learn more about [emergency treatment for brain hematoma (Arabic)](). ## Practical Steps and Warnings If you or someone you know experiences a sudden, severe headache, especially if accompanied by nausea, vomiting, seizures, or any other neurological symptoms, emergency medical assistance must be sought immediately. These symptoms may indicate a ruptured aneurysm or cerebral hemorrhage, which are conditions that require urgent medical intervention to reduce the risk of serious complications or death [\[2\]](). Recovery from a brain hematoma depends on several factors, including the severity of the bleeding and the location of the aneurysm, and may require intensive rehabilitation. It is important to follow the treatment plan recommended by physicians and adhere to periodic appointments to evaluate the condition [\[1\]](). ## Medical references - [Cerebral Aneurysms]() - [Aneurysm in the brain]() General health education; not a substitute for individualized clinical assessment. Citation URL: https://clinicsjo.com/en/faq/ma-al-farq-bayna-tamaddud-al-awiya-al-damawiya-wa-tajammu-al-dam-fi-al-dimagh#answer