Accidents happen—on the sports field, at home, or even in the workplace. One moment you’re going about your day, and the next, someone has taken a knock to the head. While many head bumps are minor, some can lead to more serious complications such as concussion or traumatic brain injury. Knowing how to respond in the moment can make a significant difference.
This guide provides practical steps on what to do after a bump on the head, how to recognise serious symptoms, and when to seek medical attention.
Step 1: Follow the DRCABCD, Stay Calm, and Assess the Situation
If someone bumps their head, the first thing to do is stay calm and follow DRSABCD (Danger, Response, Send for help, Airway, Breathing, CPR, and Defibrillation). Carefully assess the situation to ensure it’s safe for you and the injured person.
If you witnessed the incident, take note of how it happened—this information will be helpful for a doctor’s assessment or when providing a handover to ambulance personnel.
Check whether the person is conscious and responsive. Ask simple questions like their name or the current date to gauge their awareness. If they are unresponsive or lose consciousness, even briefly, treat it as a medical emergency and call Triple Zero (000) immediately.
Examine the head and nearby areas for visible injuries such as cuts, swelling, or bruises. If the person is bleeding heavily or you suspect a spinal or neck injury, do not move them.
Healthdirect Australia provides an excellent overview of what to do after a head injury.
Step 2: Watch for Serious Warning Signs
Some symptoms indicate a potentially serious brain injury or concussion. Even if the person appears fine at first, symptoms can develop gradually in the hours following the injury. It is important to monitor closely for any of the following red flags:
Loss of Consciousness
Losing consciousness, even for a few seconds, is a serious concern. It may indicate a concussion or more severe brain trauma and warrants immediate medical attention. The person should be taken to the emergency department for assessment.
Vomiting More Than Once
Occasional nausea can follow a head injury, but vomiting more than once is a warning sign. It may signal increased pressure in the brain due to swelling or internal bleeding.
Seizures or Convulsions
If the individual experiences a seizure or sudden jerking movements, call an ambulance immediately. Seizures can be triggered by abnormal brain activity following trauma.
Clear Fluid from the Nose or Ears
The presence of clear, watery fluid draining from the nose or ears may indicate a skull fracture and cerebrospinal fluid leakage. This is a medical emergency and should not be ignored.
Uneven Pupil Size
Check the person’s eyes. If one pupil is larger than the other, it could suggest brain swelling or bleeding. This is another red flag requiring urgent evaluation.
Slurred Speech or Difficulty Speaking
If the person is having trouble forming words, is slurring, or seems confused when speaking, it may be due to brain dysfunction caused by the injury.
Weakness or Numbness in Limbs
Inability to move parts of the body or sensations of tingling and numbness may indicate damage to the nervous system. Seek medical care immediately if this occurs.
The Better Health Channel from Victoria’s Department of Health offers a clear breakdown of signs to monitor after a head injury.
Step 3: Know the Common Signs of Concussion
Not all concussions are immediately obvious. Symptoms may take hours—or even days—to appear, which is why it’s essential to be vigilant in the aftermath of a head injury.
Common concussion symptoms include:
- Headache or pressure in the head: A persistent headache following a bump can be an indicator of a concussion.
- Dizziness or balance issues: Feeling light-headed, off balance, or unsteady on the feet may point to impaired brain function.
- Nausea or vomiting: As mentioned earlier, repeated vomiting should be taken seriously. Even mild nausea is worth monitoring.
- Blurry or double vision: Difficulty focusing or changes in eyesight may follow a concussion.
- Sensitivity to light and noise: A person may complain that bright lights or loud sounds feel overwhelming or painful.
- Memory problems or confusion: The person might not remember the event, appear disoriented, or struggle to follow a conversation.
- Mood changes or irritability: Emotional instability, sudden sadness, or anxiety can be a result of brain trauma.
- Difficulty concentrating: Challenges with attention or mental focus can persist for hours or even days after a concussion.
Concussions are complex and not always visible to the eye. Only a qualified healthcare professional can confirm a diagnosis.
The NSW Health website includes a helpful guide, especially for recognising concussion in children and adolescents.
Step 4: What to Do While Waiting for Help
If the injury seems serious or you’re unsure, it’s best to seek medical advice. While waiting to see a doctor or for an ambulance, follow these steps:
- Keep the person awake, alert, and as still as possible.
- Apply a cold pack or clean cloth with ice to reduce swelling at the site of the injury.
- Stay by their side and observe for any changes in their condition.
- Do not administer medication (such as paracetamol or ibuprofen) unless instructed by a doctor.
- Avoid letting the person sleep if they are showing signs of confusion, slurred speech, or nausea.
If in doubt, contact Healthdirect’s 24/7 helpline at 1800 022 222 to speak to a registered nurse for free health advice.
Concussion in Sports – When in Doubt, Sit Them Out
Sports-related concussions are common, especially in contact sports such as football, rugby, basketball, and netball. Returning to play too soon can put the athlete at risk of further injury and longer recovery times.
If a player suffers a blow to the head:
- Remove them from play immediately.
- Monitor for concussion symptoms listed above.
- Seek medical assessment before allowing them to return to sport.
For coaches, trainers, and event organisers, the Australian Sports Commission offers detailed concussion management guidelines.
You can also recommend the HeadCheck app to parents and athletes — it’s a free tool designed to help recognise concussion and manage return-to-play safely.
When to See a Doctor
If the symptoms are mild and do not worsen, you may not need to go to the emergency department, but it is still important to consult a general practitioner within 24 to 48 hours of the incident.
Children, elderly people, and individuals on blood-thinning medication are more vulnerable to complications from head injuries. In these cases, even a minor bump should be evaluated by a healthcare provider.
Final Thoughts
A bump on the head may seem minor at first glance, but brain injuries can escalate quickly if left unmonitored. Being aware of the symptoms of concussion and the warning signs of more serious trauma can make a critical difference.
Always take head injuries seriously. When in doubt, seek medical advice. Your brain is too important to take chances with.
Sources:
Better Health Channel. (n.d.). Head and spinal injuries – first aid. Victorian State Government – Department of Health. Retrieved May 15, 2025, from https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/head-and-spinal-injuries-first-aid
Healthdirect Australia. (n.d.). Head injury. Retrieved May 15, 2025, from https://www.healthdirect.gov.au/head-injury
Better Health Channel. (n.d.). Head injuries and concussion. Victorian State Government – Department of Health. Retrieved May 15, 2025, from https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/head-injuries-and-concussion
Healthdirect Australia. (n.d.). Concussion. Retrieved May 15, 2025, from https://www.healthdirect.gov.au/concussion
Australian Sports Commission. (n.d.). Guidance and resources. Retrieved May 15, 2025, from https://www.ausport.gov.au/guidance-and-resources
Murdoch Children’s Research Institute. (n.d.). HeadCheck – What is HeadCheck? Retrieved May 15, 2025, from https://www.headcheck.com.au/what-is-headcheck/