Early Signs of Stroke: What to Watch For

Key Takeaways:

• A stroke happens when the blood supply to part of the brain is interrupted by a blocked or ruptured blood vessel.
• F.A.S.T helps identify common early signs of stroke: face drooping, arm weakness, speech difficulty and time to act.
• Sudden facial changes, arm weakness or slurred speech should not be dismissed as tiredness or stress.
• If a stroke may be happening, note when symptoms started and call Ambulance 995 immediately.

Introduction

Stroke is a medical emergency. Depending on which area of the brain is affected, a stroke can cause problems with movement, sensation, speech, swallowing, vision and thinking. Early treatment can prevent further brain damage and may improve the chances of recovery. A delay in medical treatment increases the risk of long-term disability and even death. This is why recognising the early signs of stroke and acting quickly is critical.

What is a Stroke?

A stroke occurs when the blood supply to part of the brain is interrupted by a blocked or ruptured blood vessel. When the brain does not receive enough oxygen and nutrients, brain cells can be damaged.

Recognise the Early Signs of Stroke Using F.A.S.T

A simple way to recognise stroke symptoms is to remember F.A.S.T. This method helps the public check for some of the most common early signs. These may include facial changes, arm weakness and speech difficulty.

F – Face

Ask the person to smile.

Does one side of the face droop?

Does the face or eye look crooked?

Facial asymmetry may indicate a stroke. The change may appear suddenly and may be more obvious when the person tries to smile or speak. One side of the mouth may not lift properly or the face may look uneven.

This sign should not be dismissed as tiredness, stress or a temporary facial expression. If the face looks uneven and this is unusual for the person, treat it seriously.

A – Arms

Ask the person to raise both arms.

Is there difficulty lifting one or both arms?

Does one arm drift downward?

Arm weakness or difficulty lifting both arms can be a warning sign. The person may be unable to lift one arm fully or one arm may slowly drop even when they are trying to keep it raised.

This weakness may affect the arm, hand or one side of the body. Sometimes, the person may describe numbness, heaviness or loss of coordination. If this happens suddenly, urgent medical attention is needed.

S – Speech

Ask the person to speak or repeat a sentence.

Are the words slurred?

Is the person having difficulty speaking or unable to speak?

Does the person have trouble understanding you?

Speech difficulty is a key early symptom. The person may speak unclearly, struggle to find words or appear confused when responding. They may also understand less than usual, even if they seem awake.

These changes can be alarming, especially when they happen suddenly. Rather than waiting to see whether the person improves, respond as though a stroke may be happening.

T – Time

If face drooping, arm weakness and speech difficulty are present:

A stroke may be happening. It is time to call 9-9-5.

Time is critical because treatment decisions may depend on how soon symptoms began. If possible, note the time the symptoms first started. This information can help the medical team assess the situation and decide on the most suitable treatment approach. Do not wait for the symptoms to disappear, do not let the person sleep it off and do not drive them to the hospital yourself if emergency help is needed.

What Are Some Other Early Signs of Stroke?

Stroke symptoms often come on suddenly. While F.A.S.T. is a useful way to remember common warning signs, not every stroke presents in the same way. Some symptoms may be brief or may seem mild at first, but they can still indicate a medical emergency.

Other warning signs include:

• Sudden numbness of the face, arm or leg, especially on one side of the body
• Sudden difficulty seeing with one or both eyes
• Sudden difficulty walking
• Sudden dizziness, imbalance or uncoordinated movement

These symptoms require urgent medical attention. A person may also appear unusually confused, have trouble following instructions or seem unable to coordinate simple movements. If the symptoms are sudden and unusual, it is safer to call an ambulance.

Public awareness is especially important because strokes can happen at home, at work, in public places or during daily activities. Family members, colleagues, neighbours and bystanders may be the first people to notice something is wrong.

The Importance of Early Recognition

Early diagnosis and treatment of stroke can significantly reduce the risk of long-term disability. Recognising the signs and acting quickly may make a difference.

When a stroke may be happening:

• Call Ambulance 995 immediately.
• Ensure the person reaches the hospital as soon as possible.
• Note the time the symptoms first started, as this information affects treatment decisions.

Early recognition also helps reduce uncertainty in stressful situations. When people know what to watch for, they are less likely to dismiss symptoms as fatigue, dizziness, ageing or confusion. Acting quickly is important because stroke treatment is time-sensitive and delays can affect outcomes.

Building Stroke Awareness in Singapore

Understanding the early signs of stroke empowers individuals and families to respond quickly during a medical emergency. The Singapore Heart Foundation (SHF) supports stroke and heart health awareness through evidence-based education, community outreach and public health initiatives.

Singaporeans can build on this awareness by sharing stroke warning signs with family members or accessing public education resources to improve emergency preparedness. By strengthening everyday awareness and encouraging timely action, we help Singaporeans feel more prepared to recognise possible stroke symptoms and support safer responses during medical emergencies.

Recognising F.A.S.T. – face drooping, arm weakness, speech difficulty and time to act – can help people act without delay. In a suspected stroke, every minute matters. Call Ambulance 995 immediately, note when the symptoms began and ensure the person gets urgent medical care.

Building a more prepared Singapore starts with awareness. When more people understand the early symptoms and know what to do, families, workplaces and communities are better equipped to respond when it matters most.