Jiu jitsu can be hard on your thumbs and other digits. In some cases, a compliance lock directly attacks your thumb. In others, a misapplied or unfortunate grip will twist your thumb in its socket. In still others, the simple fatigue and pressure on your thumb will leave it sore for several days. Although this is an unavoidable part of the sport, you can take steps to minimize the pain and guard against future damage.
Common Causes
The most common jiu jitsu thumb injuries are minor sprains, twists and strains from the pressures of the sport. These are largely unavoidable, but can be mitigated by taking care of your partner and "tapping out" on thumb locks before injury sets in. Major injuries are most common when a thumb gets trapped in an opponent's uniform. Guard against this by keeping your thumbs parallel to your fingers when grabbing -- not wrapping your thumbs to make a circle with your fingers.
Immediate Treatment
If your thumbs hurt after jiu jitsu class, ice is the best immediate treatment. That pain will be accompanied by swelling, your body's natural response to injuries of this type. Although helpful in the healing process, it can also cause further pain and restriction of movement. Ice restricts blood flow, which in turn reduces swelling. Ice immediately and properly applied can cut your healing time by a factor of days.
Long-Term Treatment
If your thumb is sore after practice, it's likely to be sore for several days. For general minor injuries, a combination of ice and anti-inflammatory medication like ibuprofin is the best home remedy. These will continue to reduce pain and swelling while the tissue heals on its own. Major injuries may require tape, splinting or wrapping.
Common Sense Caution
Your thumb is an important part of your hand. If you experience pain beyond simple soreness, it's a good idea to check with your doctor or another medical professional. If you feel sharp pain, severe swelling or have lost mobility in your thumb, stop your jiu jitsu practice immediately. Don't go back on the mat until your doctor has checked your thumb and told you it's all right.
References
- "USJA Basic JuJutsu Manual"; Phillip Porter; 1996
- "The Sports Injury Handbook"; Christer Rolf; 2010



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