Minor Head Injuries:
Should You Visit A&E or Watch and Wait?

Accidents happen. Whether it’s a toddler bumping their head on a coffee table or an adult falling off a bike, head injuries are a leading cause of worry. While the majority of head bumps are “minor” and can be managed at home, it is vital to know how to spot the signs of a more serious brain injury or concussion.

This guide follows the NICE (National Institute for Health and Care Excellence) quality standards for head injury assessment in the UK.

1. When is a Head Injury an Emergency?

Not all head injuries require an ambulance, but certain symptoms indicate that the brain may have been affected.

Seek urgent medical help at A&E if you notice:

• Loss of consciousness: Even if they “came to” quickly.
• Persistent Vomiting: Especially if they vomit more than once.
• Changes in Behaviour: Irritability (especially in children), unusual aggression, or extreme drowsiness.
• Neurological Signs: Weakness in arms or legs, slurred speech, or problems with balance.
• Memory Loss: Not being able to remember the incident or events leading up to it.

2. Understanding Concussion

A concussion is a temporary injury to the brain caused by a bump, blow, or jolt. It isn’t always visible from the outside (no “goose egg” or bruise).

Common symptoms of a mild concussion include:

• A mild headache.
• Feeling “dazed” or in a fog.
• Slight dizziness or ringing in the ears.
• Nausea (without repeated vomiting).

3. Home Care: The First 24 Hours

If the injury is minor (no loss of consciousness, person is alert and responding normally), you can monitor them at home.

• The Observation Rule: Stay with the person for the first 24 hours. If it’s a child, check on them every few hours during the night to ensure they respond normally to being woken.
• Pain Relief: Use paracetamol for headaches. Avoid ibuprofen or aspirin for the first 48 hours unless advised by a doctor, as these can theoretically increase the risk of bleeding.
• Rest: Physical and cognitive rest is crucial. Limit screen time (phones, TV, video games) for the first 24–48 hours.
• No Alcohol: Adults should strictly avoid alcohol for at least 3 days after a head injury.

4. How “Calm or Call” Helps You Decide

The difficulty with head injuries is that symptoms can evolve over time. Our AI triage tool walks you through the NICE-aligned questions used by clinicians to grade the severity of a head injury.

Instead of guessing whether a “bump” is serious, the tool helps you identify subtle red flags that mean a trip to the Urgent Treatment Centre is safer than staying home.

Summary: Watch and Wait vs. Go to A&E

References & Verified Sources