It’s a familiar Saturday morning scene at ovals and courts across the Mornington Peninsula: a junior sports player takes a knock during a game, gets back up, and finishes the match. A few hours later, they mention a headache. Is it just tiredness and dehydration, or could it be something more?

Headache is one of the most common symptoms reported after a concussion, but it’s easy to dismiss because headaches happen for lots of reasons after physical activity. Understanding what makes a post-sport headache worth taking seriously can help parents, coaches and players respond appropriately rather than second-guessing themselves on the sideline.

Why Headache Is Often the First Clue

Concussion is a functional brain injury caused by a knock to the head, or a knock elsewhere on the body that transmits force to the head and neck. It doesn’t require loss of consciousness, and it often doesn’t look dramatic. A headache that develops or worsens after a collision, fall, or heavy contact during sport is one of the signals that clinicians trained in recognised concussion frameworks, such as those used by Complete Concussions (CCMI), are taught to watch closely.

What makes a headache more concerning after sport is context. A headache that appears straight after a knock to the head, that gets worse with activity, or that is accompanied by other symptoms is different to general fatigue-related discomfort.

Other Signs That Often Accompany a Concussion Headache

Headache rarely occurs in isolation with concussion. Coaches and parents on the sideline should also watch for:

  • Dizziness or balance problems
  • Nausea or vomiting
  • Sensitivity to light or noise
  • Confusion, slowed responses, or difficulty concentrating
  • Feeling “foggy,” unusually emotional, or “not quite right”
  • Blurred or double vision

These symptoms can appear immediately or may not show up until hours later, which is one reason ongoing observation matters, even if a young athlete seems fine straight after the incident.

What to Do When You Suspect a Concussion

The general guidance reflected in frameworks such as the AFL concussion guidelines is straightforward: if in doubt, sit them out. A junior sports player should be removed from play immediately if concussion is suspected, regardless of how important the game or training session feels at the time. Continuing to play with an undiagnosed concussion is not a decision to leave to the athlete themselves.

From there, the player should be monitored, kept away from further contact or return to play that day, and assessed by an appropriately trained health professional. This is where concussion testing on the Mornington Peninsula plays a role — not to declare someone “cleared” on the spot, but to support a more informed picture of how the athlete is tracking and what a sensible, staged path back to activity might look like.

Why Local Access to Assessment Matters

Junior sport is woven through community life across the Peninsula, from weekend football and netball to basketball and cricket at local clubs in McCrae, Dromana, Rosebud and Rye. When a knock happens at training or on game day, having somewhere nearby to seek a proper assessment makes it easier for families to act promptly rather than waiting or guessing.

Our osteopaths at The Seaside Osteo are trained through Complete Concussions (CCMI), which means assessments are grounded in a recognised, structured framework rather than a one-off checklist. This concussion testing approach looks at a range of factors, including symptoms, balance and cognitive function, to help build a fuller picture over time — supporting families and coaches in making informed decisions rather than rushing a return to sport.

Supporting a Gradual, Informed Return

One of the most important shifts in concussion management over recent years has been moving away from rigid timeframes and toward individualised, symptom-guided recovery. No two young athletes recover at exactly the same pace, and pushing a return to contact sport before someone is ready can prolong symptoms.

A staged approach generally involves rest from contact activity in the early period, followed by a gradual reintroduction of light activity, then sport-specific training, and finally a return to full contact, with each stage guided by how the athlete is coping rather than the calendar. This is a process best navigated with input from a health professional familiar with concussion, alongside communication between the athlete, family, coach and school.

Parents wanting to better understand the signs, the process, and how to support their child can also find it valuable to attend a free concussion workshop, which covers recognition and response in more depth than a single conversation on the sideline allows.

When to Seek Assessment

Not every bump to the head needs an emergency response, but any suspected concussion warrants assessment, and some signs need urgent medical attention. Seek emergency care immediately if a young athlete has worsening headache, repeated vomiting, seizures, increasing confusion, weakness or numbness, or any loss of consciousness. For symptoms that are present but not severe, a structured concussion assessment in the days following the incident can help establish a clearer baseline and guide next steps.

If your child, or a player at your club, has had a knock during sport and a headache has followed, it’s worth having that assessed rather than waiting to see if it resolves on its own. Concussion doesn’t always look serious at first glance, which is exactly why a considered, evidence-based assessment matters.

Frequently asked questions

How soon after a knock can concussion symptoms appear?

Symptoms can appear immediately or develop over the following hours, and sometimes even the next day. This is why ongoing observation is important even if a young athlete seems okay straight after the incident.

Should a headache after sport always be treated as a possible concussion?

Not every headache means concussion, but any headache that follows a knock to the head or body, especially alongside dizziness, nausea or confusion, should be taken seriously and assessed rather than assumed to be general tiredness.

Can a young athlete return to play the same day if they seem fine?

No. Recognised concussion guidelines, including the AFL concussion guidelines, recommend removing a player from the field immediately if concussion is suspected and not allowing same-day return to play, even if symptoms appear to settle quickly.

What does concussion testing actually involve?

A structured concussion assessment typically looks at reported symptoms, balance, and cognitive function using a recognised framework. It supports a clearer, more informed picture of recovery rather than providing a simple pass or fail result.

Where can parents on the Mornington Peninsula learn more about concussion recognition?

Parents and coaches can attend a free concussion workshop to learn more about recognising signs and understanding the response process, in addition to seeking individual assessment when a concussion is suspected.

Concussion testing on the Mornington Peninsula

To learn more or arrange concussion testing, assessment or return-to-play support, visit our concussion testing page or book an appointment online with The Seaside Osteo in McCrae.

Book an appointment online

This article is general information for Mornington Peninsula families and is not a substitute for individual medical assessment. If you suspect a concussion, seek advice from a qualified health practitioner, and call 000 if there are emergency warning signs.