Brain haemorrhage

Last updated: 24 Apr. 2026
Reviewed by: Specialist doctors from the Elfcare quality team

A sudden, severe headache, one-sided weakness, or slurred vision can appear without warning. These are often signs of a brain haemorrhage — the rupture of a blood vessel that causes bleeding into or around brain tissue.

While the event itself is sudden, many haemorrhagic strokes are preceded by structural vessel changes that are visible on an MRI long before bleeding occurs. Identifying these vulnerabilities, such as weakened vessel walls or microbleeds, is one of the most critical functions of Elfcare’s brain MRI.

By combining advanced imaging with regular tracking of blood pressure and vascular health, Elfcare focuses on early detection. This proactive approach allows you to address subtle circulatory risks before they lead to a serious complication, giving you the clarity needed to protect your long-term neurological health.

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What is a brain haemorrhage?

A brain haemorrhage is a type of stroke caused by the rupture of a blood vessel in or around the brain. The leaked blood creates pressure on surrounding tissue, depriving brain cells of oxygen and causing damage. Unlike ischaemic stroke, caused by a blocked vessel, haemorrhagic stroke is caused by bleeding, which changes both the clinical presentation and treatment approach fundamentally.

There are several subtypes based on location:

  • Intracerebral haemorrhage: bleeding within the brain tissue itself; most commonly caused by chronic hypertension or cerebral amyloid angiopathy

  • Subarachnoid haemorrhage: bleeding into the space surrounding the brain; most commonly caused by rupture of a cerebral aneurysm

  • Subdural and extradural haemorrhage: bleeding between the brain and its protective membranes; often trauma-related

Symptoms of a brain haemorrhage

Brain haemorrhage symptoms appear suddenly and are often more severe than ischaemic stroke. Common signs include:

  • Sudden, extremely severe headache

  • Weakness or numbness on one side of the face, arm, or leg

  • Speech difficulty — slurred speech or inability to find words

  • Blurred or double vision

  • Loss of balance or coordination

  • Confusion, drowsiness, or loss of consciousness

  • Nausea and vomiting

A sudden severe headache with no obvious cause, particularly one that peaks within seconds, should always be treated as a medical emergency until proven otherwise.

What causes a brain haemorrhage?

Brain haemorrhage results from vessel wall weakness or rupture under pressure. The most common causes and risk factors include:

  • Chronic hypertension: the leading cause; high pressure weakens vessel walls until they fail.

  • Structural abnormalities: clusters of thin-walled vessels (cavernomas), tangles of arteries (AVMs), or balloon-like bulges (aneurysms) that are prone to rupture.

  • Cerebral amyloid angiopathy: deposition of amyloid protein in vessel walls, causing fragility.

  • Anticoagulant medication: blood thinners increase bleeding risk significantly

  • Excessive alcohol use: impairs clotting and raises blood pressure

  • Head trauma: can cause subdural or extradural haemorrhage

Understanding and controlling these risk factors early can significantly lower the chance of stroke-related complications.

How is brain haemorrhage detected?

Detection combines brain MRI, which identifies structural vascular abnormalities before bleeding occurs, with blood tests that assess the risk factors driving vessel wall fragility.

Brain MRI is the most sensitive tool for identifying the structural causes of hemorrhagic stroke before symptoms develop. Elfcare's full body MRI includes comprehensive brain imaging via MR Angiography (MRA) and can detect:

  • Cavernomas: abnormal vessel clusters with characteristic "popcorn" appearances.

  • Microhaemorrhages: tiny blood deposits indicating past "silent" bleeds from high blood pressure or amyloid protein buildup.

  • Structural damage: white matter changes and old haemorrhagic scars reflecting chronic vascular stress.

Blood tests assess the systemic risk factors that compromise vessel wall integrity. Elfcare’s blood tests track heart, vessel, and clotting markers helping you identify imbalances long before they affect brain function. Relevant markers include:

  • Total cholesterol, LDL, and Lipoprotein(a): vascular health markers; very low LDL and elevated Lp(a) have associations with haemorrhagic risk

  • HbA1c and glucose: diabetes damages vessel walls and raises haemorrhagic stroke risk

  • CRP: systemic inflammation contributes to vessel wall fragility

  • Creatinine and eGFR: kidney disease is closely linked to hypertension and vascular damage

  • Platelet count: low platelets impair clotting and increase bleeding risk

  • Ferritin and haemoglobin: anaemia and iron deficiency affect vascular function

Why early detection matters

Brain haemorrhages rarely occur without warning. Silent structural issues, like cavernomas, or chronic conditions like hypertension often precede a rupture. Identifying these early allows for specialist monitoring and lifestyle changes before vessel damage becomes irreversible.

By tracking blood pressure and vascular health regularly, you can take proactive steps, such as medical management or diet and activity adjustments, to support vessel integrity. Detecting these risks now is the most effective way to prevent a catastrophic event and stay ahead of your neurological health.

How Elfcare can help

Elfcare's full body MRI includes comprehensive brain imaging that can identify cavernomas, old microhaemorrhages, hypertensive white matter changes, and evidence of past haemorrhagic events — structural findings that indicate elevated haemorrhagic stroke risk, often in entirely asymptomatic individuals.

Our blood panel covers the key vascular risk markers — lipids, HbA1c, CRP, kidney function, and full blood count — providing a complete picture of the systemic factors contributing to vessel fragility.

If our MRI or blood tests identify a suspicious finding, we take care of further diagnostics or refer you to the appropriate specialist.

Book a consultation to learn more
Book a consultation to learn more

Summary

Brain haemorrhage is a serious but often predictable event. The factors leading to it are build quietly over time. Regular testing and awareness can help you act early and confidently.

Elfcare's brain MRI can identify cavernomas, microhaemorrhages, and hypertensive vessel changes, while our blood panel covers the vascular and metabolic risk factors driving vessel fragility.

When you understand your body, you make choices that protect your comfort, mobility, and health for years to come.

Last updated: 24 Apr. 2026
Reviewed by: Specialist doctors from the quality team at Elfcare

FAQ

  • A brain haemorrhage is a type of stroke caused by the rupture of a blood vessel in or around the brain. Leaked blood creates pressure on surrounding tissue, causing neurological damage. It differs from ischaemic stroke, which is caused by vessel blockage, in both cause and treatment. Subtypes include intracerebral haemorrhage, subarachnoid haemorrhage, and subdural haemorrhage.

  • Sudden severe headache (particularly one peaking within seconds), weakness or numbness on one side of the body, speech difficulty, visual disturbances, loss of balance, and confusion or loss of consciousness. A sudden "worst headache of my life" is the classic warning sign of subarachnoid haemorrhage and requires immediate emergency assessment.

  • The most common causes are chronic hypertension, cerebral cavernous malformations, arteriovenous malformations, cerebral amyloid angiopathy, and cerebral aneurysms. Anticoagulant medication, excessive alcohol use, and head trauma also significantly increase risk.

  • In an acute setting, CT scan is the first-line imaging tool. For proactive detection of structural causes (cavernomas, microhaemorrhages, hypertensive changes) MRI is the most sensitive tool. Blood tests assess systemic vascular risk factors including lipids, blood sugar, inflammation, and kidney function.

  • Yes. Elfcare's brain MRI can identify structural causes of haemorrhagic stroke, including cavernomas, old microhaemorrhages, and hypertensive white matter changes, often before any symptoms develop. Our blood panel covers the key vascular risk markers. If a suspicious finding is made, we take care of further diagnostics or refer you to the appropriate specialist.

  • Many cases are preventable. Controlling blood pressure is the single most effective intervention for intracerebral haemorrhage. Identifying and monitoring structural causes such as cavernomas and AVMs allows for informed risk management. Avoiding excessive alcohol, managing diabetes, and maintaining vascular health through diet and exercise all contribute to risk reduction.