Is Jiu Jitsu Dangerous? An Insider’s Perspective
If you’re thinking about trying Brazilian Jiu Jitsu, you maybe wondering, “Is Jiu Jitsu safe?” Nobody wants to get hurt, and it’s best to know the level of injury risk before signing up for your first class. In this article I’ll share some facts to help you understand the risk of injury, Jiu Jitsu safety tips, and signs of a dangerous gym culture to watch out for. I’ll also share what I’ve personally observed and experienced.
How Dangerous is BJJ?
I know it sounds like a cop-out, but everything in life has some degree of risk, so the question you should be asking is not, “Is Jiu Jitsu dangerous?” but “How dangerous is Jiu Jitsu?” Or better yet, “How dangerous is Jiu Jitsu compared to….?”
You also need to clarify what you mean when you say “dangerous.” For example, I consider BASE jumping to be a fairly dangerous sport because 2 in 1,000 base jumpers die. With no recorded fatalities, Jiu Jitsu is much safer by comparison. But also, nearly everyone I know who trains Jiu Jitsu has experienced at least a minor injury, even if it’s just mat burn. By that metric, you could say Jiu Jitsu is very dangerous.
Refining the question even further, the best question to ask about BJJ safety is, “What risk does Jiu Jitsu pose for various types of injuries?”
What are some Common Minor Injuries in BJJ?
If you train Jiu Jitsu, you will experience pain….probably the very next morning after your first class, when you wake up and discover sore muscles you didn’t even realize you had.
It’s pretty likely that at some point, you’ll experience one of these minor injuries:
- Skin abrasions caused by friction (a.k.a. “mat burn”)
- Bruises (usually you find these later and have no idea when they happened)
- Small scratches from other people’s fingernails
- Muscle strains that heal within a day or two
- Stubbed toes
- Broken toenails or fingernails
- Joint pain that goes away within a week or two
- Pulled hair (I have to add this one to the list because of the one time I yanked my ponytail out from under a guy’s knee and left a chunk of hair behind on the mat)
There’s also a pretty good chance that at some point you’ll experience at least ONE of these non-permanent injuries:
- Jammed fingers or toes
- Muscle sprains
- Strained intercostal rib muscles (very common for beginners)
Takeaway: Most BJJ students experience some type of minor injury during training.
Jiu Jitsu Injury Risk for Beginners
People who train in Jiu Jitsu for a long time are more likely to experience severe injuries (especially to their knees and shoulders) than new Jiu Jitsu students. Beginning Jiu Jitsu students are more likely to experience non-permanent injuries due to overuse, such as muscle strains. One study found that 54.5% of novice Jiu Jitsu students experienced injury, but of these injuries, 66% were due to overuse (training too hard).
This tracks with what I’ve observed: it’s common for people who are new to Jiu Jitsu to be so excited that they train 4-5 days per week or even multiple times per day. Because they haven’t yet developed their technique, they are more accident-prone and do things that more experienced practitioners have trained not to do, like posting their hand on the mat to avoid a fall (one of my friends broke her wrist this way when she was a white belt).
Rib injuries are very common among white belts at my gym due to the pressure being put directly on the ribs in side control. I and my husband both experienced injury to our intercostal muscles when we were white belts, and we both had to take about two months off to allow time for our ribs to fully heal. Having my rib injured actually helped me learn to get on my side and not allow people to put their full weight on my mid-section, which has helped me avoid repeating this injury and why advanced Jiu Jitsu students don’t often suffer rib injuries.
Takeaway: If you want to avoid injury as a white belt, don’t overdo your training and follow the safety tips I’ll share later in this article.
Injury Risk in Training vs. Competition
You might think you’re more likely to be injured in a competition than at a Jiu Jitsu class because people would be going harder in competition. While that’s true for upper belts, according to one study, white belts are actually more likely to be injured in class than in competition, perhaps because some of the more dangerous submissions are prohibited in competition at the white belt level. Most injuries experienced during training by white belts are fairly minor, whereas upper belts are more likely to experience serious injuries requiring surgery.
Takeaway: As a beginner, focus on learning the basics instead of trying out fancy new techniques you saw on YouTube.
Is Jiu Jitsu Dangerous for Kids?
The Jiu Jitsu injury rate is significantly lower for kids than for adults, with one study measuring approximately 4 injuries per 1,000 competition exposures for competitors age 15 and younger.
Kids classes are typically focused on helping the kids have fun while learning, and while competition can get intense, kids usually aren’t allowed to perform submissions that lead to the most BJJ-related long-term injuries such as leg and ankle locks and shoulder locks. (These are actually prohibited in kids competitions.)
Instead, kids are typically learning how to control or escape from an opponent and how to safely apply basic chokes and arm locks. Of course, accidents can always happen in a room full of kids, but these are less likely to happen in a class that’s led by an experienced instructor who is good at managing the class with order and structure.
Takeaway: Injury risk is low in a well-managed kids Jiu Jitsu class, but be wary of a chaotic, out-of-control kids class led by an underqualified instructor.
What Are some Common Jitsu Injuries That are More Serious?
Many people train Jiu Jitsu for years and never experience any serious injuries. I myself am one of those people; in six years of consistent training, I’ve experienced no permanent injuries (knock on wood!). Still, injuries in Jiu Jitsu are common enough that pretty much everyone who trains knows someone who has experienced one of these common Jiu Jitsu injuries:
- Torn meniscus
- Torn MCL or LCL
- Torn rotator cuff
- Broken toes
- Fractured or separated ribs from pressure in side control
- Bulging discs from being stacked on one’s neck
- Hyperextended elbow from an armbar
- Cauliflower ear (a permanent but mostly cosmetic injury)
These serious injuries are more likely to happen to upper belts rather than white belts, with the majority resulting from takedowns and submissions (especially joint locks).
Takeaway: Tap early to joint locks and neck pressure, and work on your early escapes.
Risk of Injury to Upper Belts
The longer you train, the more chance you have of injuring yourself. The increased frequency of injuries to more advanced Jiu Jitsu practitioners an be partly attributed to the following:
- Competitors are more highly skilled at setting up and applying submission
- Upper level belts are more likely to attempt to escape a submission instead of tapping right away
- More dangerous submissions are allowed in competition.
Takeaway: If you choose to compete at the highest levels, injury risk is part of the territory. As a Jiu Jitsu hobbyist, choose training partners who value your safety more than they value winning.
Weighing the Risks
A friend of mine puts it like this: What are the risks of not training Jiu Jitsu? Those risks might include:
- Obesity, heart disease, and illness related to a sedentary lifestyle
- Increased vulnerability in the event of a physical attack or altercation
- Loneliness, isolation, and lack of community
- Stress and stress-related health issues caused by working all the time
Of course, Jiu Jitsu isn’t your only option for making friends and getting exercise, but as I already pointed out, all sports carry inherent risks. On the other hand, some people stand to be more negatively affected than others by permanent injury. My brother, for example, would like to do Jiu Jitsu, but as a professional violinist who has already fractured his arm previously, he doesn’t want to risk reinjury because it could affect his livelihood. As much as I don’t want to suffer an injury, it wouldn’t be as likely to prevent me from earning an income, so that’s less of a factor for me.
How to Stay Safe in Jiu Jitsu
If you want to keep training for a long time, these tips can help you stay safe and avoid serious injury:
- “Tap early and tap often” – especially to joint locks.
- Avoid rolling onto your neck or allowing people to stack you on your neck. Be very careful when practicing these types of movements in drills or warmups, working up slowly as you build strength and flexibility.
- Allow enough recovery time between hard training sessions. Too frequent training can lead to burnout.
- Practice submission escapes in a controlled setting before trying them in live sparring.
- Start matches on your knees instead of starting from standing.
- Practice being taken down so that you learn to fall safely.
- Don’t roll with people who make you feel unsafe, no matter the color of their belt.
- Communicate proactively with training partners about how hard you want to go. If your friend is training for a competition and you’re just there to sweat and have fun, it might be better not to roll together.
- If you’re a white belt, avoid rolling from takedown to tap with other white belts. Both of you are prone to making mistakes that can result in accidents. Instead, practice positional rolling, where one person starts in a dominant position, and the match ends after the position is lost. Then, the partners can switch positions and re-start.
Signs of an Unsafe BJJ Gym Culture
Accidents can happen at any gym, but some gyms are safer than others. I would be especially cautious of gyms with any of these red flags:
- Anyone not respecting the tap (continuing to roll after the other person has tapped)
- Students being criticized or shamed for tapping
- Upper belt students rolling aggressively with white belts
- Pressure to accept a match with someone you don’t want to roll with
- Pressure to attempt techniques you haven’t learned to do safely
- Students made to feel bad for sitting out a round when they need a break
- White belts being allowed to perform high-risk submissions such as heel hooks and knee bars
- No distinction between competition and hobby practitioners – forcing everyone to train as if they are preparing for a competition regardless of age or fitness level
- A general feeling that your training partners care more about winning than about learning
Signs of a Safe Jiu Jitsu Gym Culture
On the other hand, here are some “green flags” that indicate a gym where safety is prioritized:
- Upper belts treat lower belts with care and concern
- Instructors share safety tips and safety reminders when teaching submissions and other dangerous techniques
- Students are encouraged to “tap early and often” and to perform submissions slowly and with control
- Beginners are paired with more experienced training partners who can teach them to roll safely
- Unsafe behavior is taken seriously and dealt with appropriately
- Classes are well-organized and well-supervised to avoid unsafe situations happening without the instructor’s knowledge
Rolling in Jiu Jitsu: A Beginner’s Guide to Safety and Success
Finally, I’d like to conclude with the following advice from my instructor Steve Haydock:
1. The Purpose of Rolling
Rolling is live practice where you test techniques against a resisting partner. It’s not about winning—it’s about learning, experimenting, and developing control. Approach every round with curiosity, not ego.
2. Golden Rules of Safety
- Tap Early, Tap Often – If you feel uncomfortable, stuck, or in danger, tap clearly on your partner or say “tap.”
- Respect the Tap – Stop immediately when your partner taps—no exceptions.
- Control Over Power – Move with technique, not strength. Use smooth, measured pressure.
- Protect Your Partner – Their safety is your responsibility as much as your own.
- Listen to Your Instructor – If told to stop, stop right away.
3. Beginner Rolling Mindset
- Slow is Fast – Start at 20–30% effort. Speed and intensity come later.
- Focus on Positions – Try to hold positions like mount, guard, or side control before worrying about submissions.
- Expect to Tap A Lot – It’s normal. Every tap is a chance to learn.
- Stay Relaxed – Tension wastes energy. Breathe, flow, and reset when needed.
4. Partner Etiquette
- Choose Safely – Don’t roll unsupervised with another brand-new beginner. Pairing with more experienced students helps you learn safely.
- No Outbursts – Keep emotions in check. Train with respect.
- Communicate – If something feels off, speak up. Jiu Jitsu is cooperative learning.
5. Why This Matters for Long-Term Success
Training safely builds trust, which keeps you on the mats long enough to grow. Injuries or bad early experiences are the #1 reason beginners quit. Rolling with respect ensures you and your partners stay healthy, keep improving, and actually enjoy the journey.
Remember: Rolling isn’t about proving yourself—it’s about improving yourself.
