Yes, rugby players get concussions frequently. Concussion is the single most common match injury in rugby at virtually every level of the sport. In professional rugby union, the incidence has been measured at roughly 15 to 21 concussions per 1,000 player match hours, and research published in the British Journal of Sports Medicine estimated that a professional player is more likely than not to sustain a concussion after just 25 matches.
How Common Concussions Really Are
The numbers paint a clear picture. Over four seasons of combined club and international rugby union, concussion incidence climbed from about 8 to nearly 22 injuries per 1,000 player match hours. That upward trend reflects both a genuine increase in contact intensity and better detection through formal assessment protocols. At the community and student level, concussion rates are similarly high. A study of male student rugby players in South Africa recorded concussion as 30% of all time-loss injuries, at a rate of 9.3 per 1,000 match hours, roughly six times higher than an earlier comparable study from the UK.
To put these figures in context, a rate of 15 to 20 concussions per 1,000 player match hours means that across a full squad over a season, multiple concussions are essentially guaranteed. No other common rugby injury occurs as frequently during matches.
The Tackle Is Where Most Concussions Happen
About 95% of head injuries in rugby occur during tackles. The tackler is at greater risk than the ball carrier: roughly 63% of head injury events happen to the person making the tackle, not the one being tackled. Tacklers are about 1.7 times more likely to sustain a head injury per tackle than ball carriers. This makes sense biomechanically. The tackler’s head is often in a more vulnerable, downward-facing position as they drive into contact, leaving them exposed to impacts with the ball carrier’s hip, knee, or shoulder.
What a Rugby Concussion Feels Like
The symptoms players report most often are headache, drowsiness, fatigue, and a feeling commonly described as “being in a fog.” Research on collegiate rugby athletes found that female players tended to report headache as their most severe symptom, while male players most commonly reported drowsiness and fatigue. Both groups frequently experienced moderate to severe fatigue and drowsiness that affected their ability to train and study in the days following the injury.
These symptoms can be subtle enough that a player doesn’t immediately recognize them as concussion, which is part of what makes the injury so dangerous. Feeling “foggy” or unusually tired after a match might seem normal in a collision sport, but those are hallmark signs of a brain injury.
How Rugby Screens for Concussions
World Rugby introduced its Head Injury Assessment (HIA) protocol in 2014, and it remains the sport’s primary tool for identifying concussions during and after matches. The process works in three stages. During the match, a player involved in a significant head impact can be taken off the field for a 12-minute assessment (HIA1). This includes memory tests, balance checks via tandem gait, a symptom checklist, and a set of orientation questions known as Maddocks questions. If a player shows obvious signs of concussion at any point, they’re permanently removed from the match with no assessment needed.
After the game, a second assessment (HIA2) takes place within three hours, and a third (HIA3) follows within 24 to 36 hours. A team doctor makes the final concussion diagnosis based on clinical findings across the full 48-hour window. This staged approach catches concussions that aren’t immediately obvious, since symptoms sometimes emerge hours after the initial impact.
Mandatory Rest After Diagnosis
Once a concussion is confirmed, World Rugby mandates a minimum 12-day stand-down period before a player can return to full contact. This rule, updated in July 2022, brought rugby in line with several other contact sports. The return-to-play process is graduated: players progress through stages of increasing physical activity, and any return of symptoms at any stage sends them back to rest. This means 12 days is the minimum. Many players take longer, particularly if symptoms like headache or brain fog persist.
Headgear Doesn’t Prevent Concussions
Soft-shell headgear, often called scrum caps, is a familiar sight in rugby. Many players and parents assume it offers concussion protection. It doesn’t. A large observational study of professional men’s rugby players found no evidence that regulation soft-padded headgear reduces concussion risk. In fact, players wearing headgear had a higher rate of suspected head injuries (about 1.7 times higher) compared to those without it. Earlier research found scrum caps can reduce minor skin injuries like cuts and abrasions, but they simply don’t absorb enough force to protect the brain from the rapid acceleration and deceleration that causes concussion. There’s speculation that headgear may even encourage more aggressive play, though this hasn’t been definitively proven.
Tackle Height Rule Changes
Because the tackle accounts for nearly all concussions, World Rugby introduced a tackle height law change in 2023 that lowers the legal point of contact. The logic is straightforward: higher tackles bring the tackler’s head closer to the ball carrier’s upper body, increasing the chance of head-to-head or head-to-shoulder collisions. Lowering the legal tackle height forces tacklers to aim at the waist and below, keeping their head further from danger. Survey data from community rugby in Wales found that female players were roughly four times more receptive than male players to the rule change, agreeing it would reduce concussion risk. Adoption has been mixed, and long-term data on whether the rule meaningfully reduces concussion rates at scale is still being collected.
Long-Term Brain Health Risks
The concern with rugby concussions extends well beyond the days or weeks of recovery. A systematic review of former rugby players found they carry a 22% increased risk of developing any neurodegenerative disease compared to the general population. The risk was even more pronounced for Alzheimer’s disease specifically, with former players facing a 61% higher risk. These figures represent population-level averages, meaning not every player will develop problems, but the trend is statistically significant and consistent across studies.
It’s worth noting that researchers believe repeated subconcussive impacts, the hundreds of smaller hits that don’t produce obvious symptoms, may contribute to long-term brain changes alongside diagnosed concussions. A player who never receives a formal concussion diagnosis but absorbs thousands of tackles over a career is still accumulating brain exposure. This is one reason the sport’s governing bodies are focused on reducing overall head impact exposure, not just preventing the most visible concussions.
Differences Between Men’s and Women’s Rugby
Research on intercollegiate rugby players in the United States found that men had a 30% higher overall injury rate than women. However, the pattern of injuries differed significantly between the sexes. Men were more likely to sustain fractures (2.5 times more likely) and non-concussion head injuries (over 11 times more likely), while women had a dramatically higher rate of ACL injuries (5.3 times more likely than men). The concussion symptom profile also differs: women tend to report headache as the dominant symptom, while men more commonly highlight drowsiness and cognitive fog. These differences have implications for how concussions are screened and managed across men’s and women’s rugby programs.