The Short Answer Educational content only. Any suspected concussion in a child warrants prompt medical evaluation. Persistent, worsening, or new symptoms warrant re-evaluation, and certain signs require emergency care. Work with your child's physician and school, and consult a concussion-experienced clinician for individualized care. This is general information, not a substitute for professional advice. Coaches identify possible concussion on the sideline by watching for visible signs after any blow to the head or body, an athlete who appears dazed, unsteady, slow, confused, or emotional, or who reports symptoms like headache or dizziness (Patricios et al., 2023). A concussion can follow a hit to the head or a blow to the body that jolts the head, and it does not require loss of consciousness. The coach's job is not to diagnose but to recognize that a concussion is possible, remove the athlete from play immediately, and not return them to play the same day. The guiding rule, when in doubt, sit them out, protects young athletes from the danger of playing on with a concussion. Watch for visible signs and reported symptoms after any blow to the head or body. The coach recognizes and removes, and does not diagnose. When in doubt, sit them out, and do not return the athlete the same day. When to Suspect a Concussion A coach should suspect a possible concussion whenever an athlete sustains a blow to the head, or a blow to the body that transmits force to the head, and then shows any signs or reports any symptoms. Importantly, a concussion does not require a direct hit to the head or a loss of consciousness, most concussions occur without being knocked out, so the coach watches for the effects of any significant impact. The trigger for suspicion is the combination of a mechanism, a hit, and any concerning sign or symptom afterward. Because the effects can be subtle and can appear or worsen over minutes, a coach stays alert after any hard collision, not only after dramatic ones. The Visible Signs on the Sideline Coaches recognize concussion mainly through visible signs observed after a hit. These include the athlete appearing dazed, stunned, or confused, lying motionless or being slow to get up, unsteadiness, stumbling, or balance problems, a blank or vacant look, holding their head, clutching their head, moving clumsily, appearing slowed in their responses, or behaving in a way that is not like them, including being unusually emotional or irritable. More obvious signs include loss of consciousness, a seizure, or clearly not knowing where they are or what is happening. Any of these after a blow signals a possible concussion. A coach who saw the hit and then sees the athlete not looking right has enough to act. The Symptoms Athletes May Report Athletes may also report symptoms that indicate possible concussion, though young athletes often underreport to stay in the game, so a coach cannot rely on symptoms being volunteered. Reported symptoms include headache, dizziness, feeling foggy or slowed down, nausea, sensitivity to light or noise, blurred vision, and feeling not right. Because athletes may minimize or hide symptoms, coaches ask directly when they suspect an injury and take any admission seriously. Reported symptoms combined with a mechanism of injury are enough to remove the athlete, and the absence of reported symptoms does not rule out a concussion when visible signs are present or the athlete may be underreporting. What Coaches Do: Recognize and Remove The coach's role is clear and limited: recognize a possible concussion and remove the athlete from play, not diagnose it. An athlete with a suspected concussion is taken out of the game or practice immediately and not allowed to return to play that day, regardless of how much they want to continue or how important the game is. This immediate removal is the single most important action, because continuing to play with a concussion risks worsening the injury and, in the vulnerable period before recovery, the rare but catastrophic danger of a second impact. The athlete is then referred for medical evaluation, and return to play follows only after full recovery and clearance by an appropriate clinician through a graded process. Sideline Recognition Checklist A blow to the head, or to the body transmitting force to the head Appearing dazed, stunned, confused, or vacant Slow to get up, unsteady, or off-balance Holding the head, moving clumsily, or slowed responses Behaving unlike themselves, emotional, or irritable Reporting headache, dizziness, fogginess, or feeling not right Any loss of consciousness or seizure, which is an emergency The Guiding Rule and Its Importance The principle that ties this together is when in doubt, sit them out. A coach does not need to be certain a concussion has occurred to act. The presence of a possible concussion is enough to remove the athlete, because the cost of removing an athlete who turns out to be fine is small, while the cost of leaving a concussed athlete in play can be severe. This conservative rule exists precisely because young athletes minimize symptoms, effects can be subtle, and playing on is dangerous. Coaches who apply it consistently, removing any athlete who might have a concussion and not returning them the same day, provide one of the most important protections in youth sports. Recovery goes more smoothly when a child's nervous system is supported and daily symptoms are managed gently. Start your 3-day free trial to build a supportive daily routine. Supporting Mobility Routine JME 155 Diaphragmatic breathing lowers the arousal that amplifies symptoms and helps a child settle during recovery. A few slow breaths, several times a day, guided by an adult. JME 14 Chin tucks reduce the upper cervical tension that feeds headache during reading and screen time. Gentle repetitions with short holds. JME 1 Cervical rotation restores gentle neck mobility and supports blood flow through the vertebral arteries to the brain. Slow repetitions per direction. JME 15 Cervical lateral flexion addresses side-bending stiffness that sustains neck tension. Gentle repetitions per side. JME 16 Cervical flexion and extension restore gentle sagittal mobility restricted by protective guarding. Slow, easy repetitions. JME 2 Cervical retraction reinforces a neutral head position that reduces postural strain during desk and device time. Gentle repetitions. JME 150 Thoracic rotation restores mid-back motion needed for full, easy breathing and relaxed posture. Slow repetitions per direction. JME 227 Overhead reach opens the upper body and supports the deep, calming breathing that helps a child down-regulate. Gentle repetitions with an easy tempo. Start your 3-day free trial for joint-specific mobility programming that supports the nervous system regulation behind recovery. Common Mistakes Assuming no concussion because the athlete was not knocked out Relying on athletes to report symptoms they often hide to keep playing Returning an athlete to play the same day after a suspected concussion Waiting for certainty rather than acting on a possible concussion Letting the importance of the game override removal from play Progression Coaches identify possible concussion by watching for visible signs and reported symptoms after any blow to the head or body, without needing loss of consciousness. Their role is to recognize and remove the athlete immediately, not diagnose, and not return them the same day. When in doubt, sit them out, followed by medical evaluation and clearance before return, protects young athletes. How do coaches know if an athlete has a concussion? Coaches watch for visible signs after a blow to the head or body, appearing dazed, unsteady, slow, confused, vacant, holding the head, or behaving unlike themselves, and for reported symptoms like headache or dizziness. They do not diagnose. They recognize a possible concussion and remove the athlete, since the presence of possible concussion is enough to act. Does a concussion require getting knocked out? No. Most concussions occur without loss of consciousness, and a concussion can follow a blow to the body that jolts the head, not only a direct hit to the head. Coaches watch for signs and symptoms after any significant impact, not only dramatic ones, because the effects can be subtle and appear over minutes. What should a coach do when they suspect a concussion? Remove the athlete from play immediately and do not return them the same day, regardless of the game's importance or the athlete's wishes. This immediate removal is the most important action. The athlete is then referred for medical evaluation, and return follows only after full recovery and clearance by an appropriate clinician through a graded process. Why do athletes hide concussion symptoms? Young athletes often underreport symptoms to stay in the game, not let their team down, or avoid being pulled out. Because of this, coaches cannot rely on symptoms being volunteered, so they watch for visible signs, ask directly when they suspect an injury, and apply the rule that a possible concussion, even without reported symptoms, warrants removal. What does when in doubt, sit them out mean? It means a coach does not need certainty to act. A possible concussion is enough to remove the athlete from play. The cost of removing an athlete who turns out fine is small, while leaving a concussed athlete in play can be severe, including the rare but catastrophic danger of a second impact before recovery. Consistent application of this rule protects young athletes. How Children Recover From Concussion Most children recover fully from concussion, usually within weeks, and lasting effects are the exception rather than the rule (Lumba-Brown et al., 2018). Recovery follows a graded, symptom-guided return to activity and learning: a brief initial period of relative rest, then a gradual return to school, activity, and eventually sport, staying within a tolerable symptom range and increasing demand as the child improves. Complete rest beyond the first day or two is not recommended and can slow recovery. Reassurance matters, since a child who understands that most concussions get better tends to recover more smoothly than one who is anxious about the injury. Supporting a Child Emotionally Concussion affects children emotionally as well as physically, and the emotional side shapes recovery. Children may feel worried, frustrated, left out, or not themselves, and younger children may not have the words for it. Adults help by validating the child's experience, reassuring them that the symptoms are real and expected to improve, keeping communication open, and preserving connection with friends and family even when activity is limited. Watching for anxiety, low mood, or withdrawal, and seeking help when these persist, protects both emotional wellbeing and physical recovery, since mood and symptoms feed each other. Red Flags and When to Seek Care Any suspected concussion warrants prompt medical evaluation, and certain signs require emergency care: repeated vomiting, worsening or severe headache, seizures, increasing confusion or drowsiness, weakness or numbness, slurred speech, unequal pupils, or a child who cannot be woken. During recovery, symptoms that worsen rather than improve, or that persist beyond the expected window, warrant re-evaluation. Return to sport and other activities with head-injury risk must wait until full recovery and clearance by an appropriate clinician, following a graded process, to avoid the danger of a second injury before the brain has recovered. The Family and School Team Children recover best when the family, medical provider, and school work together. A written plan from the medical provider guides the school on symptoms and accommodations, and regular communication lets support adjust as the child recovers. At home, protecting sleep, easing pressure, and supporting a gradual return to normal routine all help. Coordinating the adults around the child, parents, teachers, coaches, and clinicians, so that everyone understands the plan, gives the child a consistent, supportive environment that is one of the strongest contributors to a good recovery. References Lumba-Brown, A., Yeates, K. O., et al. (2018). Centers for Disease Control and Prevention guideline on the diagnosis and management of mild traumatic brain injury among children. JAMA Pediatrics, 172(11), e182853. PubMed Patricios, J. S., et al. (2023). Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. British Journal of Sports Medicine, 57(11), 695-711. PubMed Silverberg, N. D., et al. (2020). Management of concussion and mild traumatic brain injury: a synthesis of practice guidelines. Archives of Physical Medicine and Rehabilitation, 101(2), 382-393. PubMed