Early Stroke Warning Signs: Symptoms You Should Never Ignore

A stroke occurs when the blood supply to part of the brain is blocked or a blood vessel in the brain bleeds. Brain tissue is highly sensitive to a lack of oxygen, so every minute matters.

• Ischaemic stroke: A blood clot or other blockage interrupts blood flow to the brain.
• Haemorrhagic stroke: A blood vessel ruptures and causes bleeding in or around the brain.

A transient ischaemic attack (TIA), sometimes called a mini-stroke, can cause similar symptoms that disappear after a short period. Even if symptoms resolve, urgent medical assessment is essential.

1. Facial Drooping

One side of the face may suddenly appear weaker or droop. Ask the person to smile and check whether the smile looks uneven.

2. Sudden Weakness or Numbness

Sudden weakness, numbness or loss of sensation may affect the face, arm or leg, particularly on one side of the body. If one arm drifts downward when both arms are raised, seek emergency medical help.

3. Difficulty Speaking

Stroke may cause a person to suddenly:

• Slur their speech.
• Struggle to find words.
• Say words that do not make sense.
• Have difficulty understanding others.

4. Sudden Vision Problems

Warning signs include blurred or double vision, loss of vision in one or both eyes, or difficulty seeing to one side.

5. Difficulty Walking or Loss of Balance

A person may suddenly become unsteady, have difficulty walking or experience problems with coordination.

6. Sudden Severe Headache

A sudden, severe headache with no obvious cause can be a warning sign, especially when accompanied by vomiting, altered consciousness or other neurological symptoms.

The FAST approach helps identify several important stroke warning signs.

• F – Face: Is one side of the face drooping?
• A – Arms: Is one arm weak or drifting downward?
• S – Speech: Is speech slurred or difficult to understand?
• T – Time: Seek emergency medical help immediately if any of these signs are present.

Do not wait to see whether the symptoms disappear.

Yes. Symptoms can temporarily disappear, particularly during a transient ischaemic attack (TIA). This does not mean the problem can safely be ignored. A TIA can warn of a future stroke, so urgent medical assessment is necessary even if the person feels better.

Other possible warning signs include:

• Sudden confusion.
• Difficulty understanding speech.
• Sudden loss of coordination.
• Sudden numbness or weakness.
• Sudden vision changes.
• Sudden severe headache.
• Sudden difficulty walking or dizziness.

Not every person will experience all these symptoms.

Act immediately. If someone suddenly develops symptoms that could indicate a stroke:

1. Note the time symptoms first appeared, or the last time the person was known to be well.
2. Seek emergency medical assistance immediately.
3. Do not wait for symptoms to improve.
4. Use emergency transport if available and follow emergency professionals' instructions.

The time symptoms begin can be important because some stroke treatments are time-dependent.

Stroke can damage brain cells rapidly when blood flow is interrupted. For eligible patients with certain ischaemic strokes, doctors may use clot-dissolving medicines or mechanical thrombectomy to restore blood flow. Suitability depends on the type of stroke, timing, imaging findings and the patient's overall condition. Reaching a hospital quickly is essential.

Assessment may include:

• Neurological examination.
• Blood pressure measurement and blood tests.
• Brain imaging using CT or MRI when appropriate.
• Blood vessel imaging in selected cases.
• Heart-related investigations when required.

Brain imaging helps doctors determine whether a stroke is caused by a blockage or bleeding before choosing appropriate treatment.

Treatment for Ischaemic Stroke

Eligible patients may receive intravenous thrombolysis or mechanical thrombectomy for certain large-vessel blockages. Decisions depend on the time since symptoms began, imaging results and medical condition.

Treatment for Haemorrhagic Stroke

Treatment focuses on controlling bleeding, managing pressure within the brain and addressing the cause. Some cases may require neurosurgical or endovascular procedures.

Rehabilitation After Stroke

Depending on the effects of the stroke, rehabilitation may include:

• Physiotherapy.
• Occupational therapy.
• Speech and language therapy.
• Swallowing assessment and rehabilitation.
• Cognitive rehabilitation and psychological support.

Rehabilitation is individualised according to each person's symptoms and recovery needs.

Important risk factors include:

• High blood pressure.
• Diabetes.
• High cholesterol.
• Smoking and excessive alcohol consumption.
• Obesity and physical inactivity.
• Certain heart conditions.
• Previous TIA or stroke.

Regular health check-ups and appropriate management of these conditions can help reduce stroke risk.

Not every stroke can be prevented, but managing risk factors can reduce the likelihood of stroke.

• Control blood pressure: Monitor it regularly and take prescribed medicines as directed.
• Manage diabetes: Follow your recommended blood glucose management plan.
• Maintain healthy cholesterol: Follow medical advice on lifestyle changes and medicines.
• Stop smoking: Quitting supports vascular health.
• Stay active: Regular physical activity supports cardiovascular health.
• Follow prescribed treatment: Attend follow-up appointments and manage existing health conditions.

Some stroke symptoms may resemble migraine, low blood sugar, seizures or other neurological conditions. Never try to diagnose the cause yourself during an emergency. Sudden neurological symptoms should be treated as a potential stroke until a medical professional has assessed the person.