RED FLAGS TO WATCH OUT FOR IN A JIU-JITSU INSTRUCTOR
“Not every black belt is a leader. Here’s what to watch for.”
When choosing a Jiu-Jitsu academy or evaluating an instructor, it's important to know what behaviors and traits might be considered red flags. Here are some key things to look out for:
“Not every black belt is a leader. Here’s what to watch for.”
1. Poor Hygiene and Presentation
One of the first red flags is the instructor’s personal presentation. If they show up to class with a dirty gi or have noticeable body odor, it’s a sign of disrespect not only to themselves but to their students. A clean and tidy appearance sets the tone for a safe and professional training environment. It’s about setting a standard of respect and hygiene on the mat.
2. Inconsistent Moods and Negative Attitudes
Instructors are human and have their own challenges, but they need to maintain a positive and encouraging atmosphere. If an instructor frequently brings personal drama or complains in front of students, it can create a negative learning environment. Students are there to learn and enjoy themselves, not to become an audience for the instructor’s frustrations. A good instructor keeps the atmosphere uplifting and focused on the students’ progress.
3. Lack of Patience and Losing Temper
Patience is key in any teaching role. If an instructor easily loses their temper, raises their voice, or even physically intimidates students who are struggling with techniques, it’s a major red flag. Students should feel safe to make mistakes and learn at their own pace without fear of being yelled at or humiliated.
4. Ego-Driven Behavior and Overreacting to Being Tapped
An instructor who can’t handle being tapped out by a student and then responds by trying to “get even” is displaying a lack of humility. Jiu-Jitsu is about learning and growing, and instructors should model sportsmanship. If they react with aggression or let their ego take over, it’s a sign that they might not be mature enough to lead by example.
5. Favoritism and Neglecting Certain Students
Another subtle red flag is when an instructor shows obvious favoritism, only paying attention to more advanced or athletically gifted students. Every student deserves equal attention and guidance. If you notice an instructor consistently neglecting beginners or less experienced students, that’s a problem.
6. Constantly Talking Bad About Other Instructors or Academies
A confident and professional instructor doesn’t need to put others down to make themselves look better.
If your instructor constantly gossips about other schools, criticizes other instructors behind their backs, or tries to make students feel guilty for visiting other teams when traveling, that’s a clear sign of insecurity. Instead of focusing on self-improvement and building their academy through leadership and example, they view others as threats and spread negativity.
This toxic mindset creates division and drama within the local BJJ community—and students often get caught in the middle.
A great instructor:
- Speaks with respect, even about rivals.
- Focuses on developing their students and their own teaching.
- Encourages a healthy and positive martial arts culture.
If someone has to tear others down to lift themselves up, it shows more about their own lack of confidence than anything else.
7. Inappropriate Relationships or “Playboy” Behavior
Finally, one of the most serious red flags in a Jiu-Jitsu academy is when an instructor flirts with or tries to pursue romantic or sexual relationships with multiple students. While adults are free to make personal choices, a pattern of predatory or manipulative behavior—especially toward newer, younger, or more vulnerable students—crosses a line.
An instructor holds a position of power and trust. When that trust is misused to chase romantic encounters, it creates an unsafe and uncomfortable environment. Students may feel pressured to reciprocate attention for fear of being treated differently, ignored in class, or even pushed out of the academy.
This kind of behavior can poison the culture of the school. It shifts the focus from training and personal growth to gossip, favoritism, and drama. If your instructor is known for trying to sleep with every new student or constantly crossing professional boundaries, it’s a huge red flag. Trust your gut.
What to Watch Out For:
- Constant flirting, especially with newer students
- Offering special treatment in exchange for attention
- Making inappropriate jokes or comments during class
- Rumors of repeated romantic involvement with students
A great instructor builds a community where everyone feels safe and respected—especially women and beginners. If you or someone you know feels uncomfortable because of an instructor’s behavior, speak up or walk away. Your safety and growth matter more than any belt.
These are just a few of the red flags to be aware of when choosing a Jiu-Jitsu instructor. But we know that every community and student has their own experiences. If you’ve encountered other warning signs or have tips to share, I love to hear from you! Drop your thoughts in the comments below, and let’s keep the conversation going. After all, creating a safe and positive training environment is something we all play a part in.