Brain Hemorrhage: Warning Signs, Causes and Emergency Treatment

Illustration of a human brain.

Illustration of a human brain.

A brain haemorrhage is one of the most life-threatening medical emergencies a person can experience. Every minute without treatment, approximately 1.9 million neurons are lost. The brain, unlike most organs, cannot regenerate lost cells.

Speed is everything.

Yet brain haemorrhages are frequently misidentified or ignored. The warning signs are sometimes subtle. Some people attribute the symptoms to exhaustion, a migraine, or stress and wait to seek help. That delay can be fatal or can mean the difference between full recovery and permanent disability.

This article explains what a brain haemorrhage is, the different types, the warning signs, the causes, and what emergency treatment involves.

What Is a Brain Haemorrhage?

A brain haemorrhage also called an intracranial haemorrhage, is bleeding that occurs within or around the brain. It is a type of stroke.

When a blood vessel in the brain ruptures, blood leaks into the surrounding tissue. This causes two forms of damage:

  • Direct damage: Blood is toxic to brain tissue. As blood accumulates, it damages and destroys the brain cells it comes into contact with.
  • Pressure damage: The skull is a rigid, enclosed space. As blood collects and a haematoma (blood clot) forms, pressure builds inside the skull. This compresses the brain, disrupting function and if pressure is not relieved, causing further damage or death.

Brain haemorrhages account for approximately 10 to 15% of all strokes. They are significantly more dangerous than ischaemic strokes (those caused by a blockage), with higher rates of death and disability.

Types of Brain Haemorrhage

1. Intracerebral Haemorrhage (ICH)

Bleeding occurs directly within the brain tissue itself. It is the most common type of haemorrhagic stroke.

  • Most frequently caused by chronic high blood pressure weakening the walls of small blood vessels within the brain
  • The blood collects as a haematoma, destroying surrounding tissue and increasing pressure
  • Symptoms develop rapidly, often over minutes to hours

2. Subarachnoid Haemorrhage (SAH)

Bleeding occurs in the space between the brain and the thin tissue covering it (the subarachnoid space).

  • Most commonly caused by the rupture of a cerebral aneurysm, a balloon-like bulge in the wall of a blood vessel
  • The hallmark symptom is a sudden, extremely severe headache, often described as the worst headache of the patient's life
  • SAH is frequently fatal or results in severe disability if not treated immediately

3. Subdural Haemorrhage

Bleeding occurs between the brain and its outermost covering (the dura mater).

  • Often caused by head trauma, particularly in elderly individuals following even a seemingly minor fall
  • Can be acute (developing rapidly after injury) or chronic (developing slowly over weeks, sometimes without a clear history of trauma)
  • Symptoms may develop gradually, making it easy to miss

4. Epidural Haemorrhage

Bleeding occurs between the skull and the outer covering of the brain.

  • Typically caused by a traumatic head injury that ruptures an artery, classically the middle meningeal artery following a temporal bone fracture
  • A classic presentation is a brief loss of consciousness followed by a lucid interval, then rapid deterioration as the haematoma expands
  • This is a surgical emergency

Warning Signs of a Brain Haemorrhage

Brain haemorrhage warning signs vary depending on the location and type of bleeding. However, there are key symptoms that should always trigger immediate emergency response.

1. The Sudden Severe Headache

A haemorrhage, particularly a subarachnoid haemorrhage, classically presents with a headache that patients describe as a thunderclap: sudden in onset, reaching maximum intensity within seconds, and far more severe than any headache previously experienced.

This is often called the worst headache of my life. This description, from any patient, demands immediate emergency evaluation. It should never be attributed to migraine or tension headache without ruling out subarachnoid haemorrhage first.

A man at his desk with hands on his head, having a headache, representing brain fog, difficulty concentrating and cognitive fatigue.

A man at his desk with hands on his head, having a headache, representing brain fog, difficulty concentrating and cognitive fatigue.

2. Sudden Weakness or Numbness

One-sided weakness or numbness of the face, arm, or leg is a cardinal sign of stroke, including haemorrhagic stroke. It reflects damage to the motor cortex or its connections.

  • The weakness or numbness is typically on one side of the body
  • Facial droop on one side, particularly noticed as an uneven smile, is a visible and easily recognisable sign

3. Sudden Confusion or Altered Consciousness

  • Sudden disorientation or confusion, difficulty understanding what is being said or where they are
  • A sudden change in personality or behaviour
  • Drowsiness that progresses to unresponsiveness
  • Loss of consciousness

A person who was entirely well and suddenly becomes confused or difficult to rouse must be treated as a medical emergency.

4. Sudden Difficulty Speaking or Understanding

  • Slurred or unintelligible speech
  • Inability to find words or form coherent sentences
  • Difficulty understanding spoken language

Speech disturbance in combination with other neurological symptoms is a red flag for stroke.

5. Sudden Vision Changes

  • Blurring or loss of vision in one or both eyes
  • Double vision
  • Visual field loss, inability to see to one side

6. Sudden Loss of Balance or Coordination

  • Unexplained dizziness or vertigo with sudden onset
  • Difficulty walking, staggering, or falling
  • Loss of coordination, inability to control fine movements

7. Seizures

A new-onset seizure in an adult with no history of epilepsy, particularly one followed by confusion, weakness, or headache can indicate intracranial bleeding.

8. Loss of Consciousness

A sudden collapse with loss of consciousness, particularly after a head injury, requires immediate emergency assessment.

Using the FAST Test

The FAST acronym is a widely used and effective tool for identifying stroke — including brain haemorrhage.

  • Face: Ask the person to smile. Is one side drooping?
  • Arms: Ask the person to raise both arms. Does one drift downward?
  • Speech: Ask the person to repeat a simple sentence. Is the speech slurred or strange?
  • Time: If any of the above are present, call emergency services immediately. Time is brain.

Causes and Risk Factors

1. High Blood Pressure (Hypertension)

Chronic hypertension is the single most important risk factor for intracerebral haemorrhage. It causes progressive damage to the walls of small blood vessels within the brain, making them fragile and prone to rupture. Controlling blood pressure is the most effective preventable measure against brain haemorrhage.

2. Cerebral Aneurysm

An aneurysm is an abnormal bulge in the wall of a blood vessel. Cerebral aneurysms often develop silently and rupture without warning, causing a subarachnoid haemorrhage. The risk of rupture increases with the size of the aneurysm, smoking, and high blood pressure.

3. Arteriovenous Malformation (AVM)

An AVM is an abnormal tangle of blood vessels connecting arteries and veins, bypassing the normal capillary system. AVMs are usually congenital. They can rupture and cause haemorrhage at any age, including in young adults and children.

4. Head Trauma

Traumatic brain injury from road accidents, falls, sports injuries, or violence is a leading cause of subdural and epidural haemorrhages. Elderly individuals are particularly vulnerable because age-related brain shrinkage stretches the bridging veins, making them more likely to tear with even minor trauma.

5. Blood Thinning Medications

Anticoagulant medications such as warfarin, aspirin, clopidogrel, and newer direct oral anticoagulants, reduce the blood's ability to clot. In patients on these medications, any haemorrhage is harder to control and more likely to expand.

6. Blood Disorders

Conditions that impair normal clotting such as haemophilia, thrombocytopenia, or leukaemia, increase the risk of intracranial bleeding.

7. Drug and Alcohol Misuse

  • Cocaine and amphetamines cause sudden, severe rises in blood pressure and are a significant cause of haemorrhagic stroke in young adults
  • Chronic heavy alcohol consumption damages blood vessel walls and impairs clotting

8. Cerebral Amyloid Angiopathy

In elderly individuals, amyloid protein deposits in the walls of small blood vessels make them fragile and prone to rupture. This is an important cause of recurrent lobar haemorrhages in older patients.

9. Brain Tumour

Both primary brain tumours and metastatic deposits can bleed, causing haemorrhage within or around the tumour.

Emergency Response: What to Do

Call Emergency Services Immediately

If you suspect a brain haemorrhage in yourself or someone else, call emergency services without delay. Do not drive yourself to hospital. Do not wait to see if symptoms improve. Every second matters.

While Waiting for Help

  • Keep the person as calm and still as possible
  • Do not give anything to eat or drink
  • If the person is unconscious but breathing, place them in the recovery position, on their side with the head tilted back slightly to keep the airway open
  • If the person stops breathing and has no pulse, begin CPR if you are trained to do so
  • Note the time that symptoms began, this is critical information for the medical team

Emergency Treatment of Brain Haemorrhage

Treatment depends on the type, location, and size of the haemorrhage, as well as the patient's condition on arrival.

1. Initial Stabilisation

  • Securing the airway, breathing, and circulation is the immediate priority
  • Blood pressure is carefully managed, both excessively high and excessively low pressure worsen outcomes
  • Blood glucose is monitored and corrected
  • Anticoagulant medications are reversed urgently if the patient is on blood thinners

2. Imaging

  • A CT scan of the head is performed immediately upon arrival. It can detect haemorrhage within minutes and is the first-line investigation.
  • MRI provides more detailed information about the type and extent of bleeding and is used when the CT is inconclusive or for further assessment
  • CT angiography or cerebral angiography identifies aneurysms and AVMs that may require treatment
Person undergoing a medical scan.

Person undergoing a medical scan.

3. Medical Management

For many brain haemorrhages, particularly smaller intracerebral haemorrhages in stable patients, treatment is primarily medical:

  • Blood pressure is controlled within a precise target range
  • Raised intracranial pressure is managed with medications and positioning
  • Seizures are prevented or treated with antiepileptic drugs
  • Supportive care is provided in an intensive care unit

4. Surgical Treatment

Surgery is required in specific situations:

  • Craniotomy and haematoma evacuation: The skull is opened and the blood clot is surgically removed. Indicated for large haematomas causing significant mass effect or in accessible locations.
  • Decompressive craniectomy: A portion of the skull is temporarily removed to allow the swollen brain to expand without fatal pressure build-up.
  • Surgical clipping of aneurysm: A small metal clip is placed across the neck of the ruptured aneurysm to stop bleeding and prevent rebleeding.
  • Endovascular coiling: A minimally invasive procedure in which soft platinum coils are passed through a catheter into the aneurysm, causing it to clot and seal. It is now the preferred treatment for many aneurysms.
  • AVM resection or embolisation: Surgical removal or catheter-based blockage of an arteriovenous malformation to prevent future bleeding.

Rehabilitation

For survivors, rehabilitation begins as soon as the patient is medically stable, often within 24 to 48 hours of admission.

The goal is to maximise recovery of function lost due to the haemorrhage. This involves:

  • Physiotherapy: To restore movement, strength, balance, and mobility
  • Occupational therapy: To regain the ability to perform daily activities independently
  • Speech and language therapy: To address language, speech, and swallowing difficulties
  • Neuropsychology: To address cognitive changes, memory problems, and emotional difficulties
  • Cardiac rehabilitation: To manage cardiovascular risk factors and prevent recurrence

Recovery after brain haemorrhage is highly variable. Some patients recover with minimal deficits. Others face significant, permanent disability. The extent of recovery depends on the size and location of the haemorrhage, the patient's age, and the speed with which treatment was received.

Reducing the Risk of Brain Haemorrhage

Many brain haemorrhages are preventable. The following measures significantly reduce risk:

  • Control blood pressure. This is the single most important step. Know your numbers and manage hypertension aggressively through lifestyle and medication.
  • Do not smoke. Smoking damages blood vessel walls and significantly increases the risk of aneurysm rupture.
  • Limit alcohol consumption. Heavy alcohol use raises blood pressure and impairs clotting.
  • Avoid recreational drugs, particularly cocaine and amphetamines.
  • Manage anticoagulant medications carefully under medical supervision.
  • Wear a helmet when cycling, motorcycling, or participating in contact sports.
  • Manage diabetes and high cholesterol, both contribute to blood vessel damage.
  • Attend regular health check-ups to identify and treat vascular risk factors early.

At Prakash Hospital

A Brain Haemorrhage Is a Medical Emergency. Every Second Counts. Prakash Hospital, Noida provides 24-hour emergency care with advanced diagnostic imaging including CT Scan and MRI, critical care facilities, and specialist medical teams equipped to manage neurological emergencies.

If you or someone you know is showing warning signs, act immediately.

Call emergency services first. Then call us at +91 88260 00033 or visit www.prakashhospitals.in Located at D-12A, 12B, Sector 33, Noida.

Fast action saves lives and protects the brain.

Frequently Asked Questions (FAQs)

Q1. Can a person survive a brain haemorrhage?

Yes. Many people survive brain haemorrhages. Survival and the degree of recovery depend on the type and size of the haemorrhage, the speed of emergency treatment, the patient's age, and overall health. Early treatment significantly improves the chances of survival and meaningful recovery.

Q2. What is the difference between a brain haemorrhage and a stroke?

A stroke is an umbrella term for any sudden disruption of blood supply to the brain. There are two types: ischaemic stroke (caused by a blocked blood vessel) and haemorrhagic stroke (caused by a ruptured blood vessel). A brain haemorrhage is a form of haemorrhagic stroke.

Q3. How quickly must a brain haemorrhage be treated?

Treatment must begin as soon as possible. The phrase time is brain reflects the fact that every minute of delay results in the irreversible loss of millions of neurons. For patients eligible for surgical intervention, outcomes are significantly better when surgery is performed early.

Q4. Can a brain haemorrhage occur without any warning?

Yes. Many brain haemorrhages, particularly those caused by aneurysm rupture, occur without any preceding warning symptoms. However, some patients report a sentinel headache like a sudden, severe headache in the days or weeks before a major bleed, that may represent a small warning bleed. Any sudden, severe, unusual headache must be evaluated urgently.

Q5. What are the long-term effects of a brain haemorrhage?

Long-term effects vary considerably depending on the location and extent of damage. They may include weakness or paralysis, speech or language difficulties, memory and cognitive problems, personality changes, epilepsy, fatigue, and depression. With intensive rehabilitation, many deficits improve significantly over time.

Q6. Can brain haemorrhage recur?

Yes. The risk of recurrence depends on the underlying cause. Patients with uncontrolled hypertension, untreated aneurysms, or cerebral amyloid angiopathy are at higher risk of repeat haemorrhage. Addressing the underlying risk factors is essential to reducing this risk.

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