BJJ finger and hand injuries: sore knuckles, sprains and taping
Ask anyone who has trained in the gi for a few years to show you their hands. Sore, stiff, swollen finger joints are almost a badge of the sport. Steven trains BJJ and knows the feeling. Most finger problems are manageable, but a few need proper attention.
How common are finger and hand injuries in BJJ?
Very. In a survey of BJJ practitioners, the hand and fingers were the most common site of injuries that athletes managed themselves without seeing a doctor, ahead of the arm and elbow, and upper-limb injuries were more frequent but generally less severe than lower-limb injuries (McDonald et al., Sports, 2017). In other words, lots of people have sore hands, and most train through it.
Why does BJJ hurt your fingers?
Gi grips are the main reason. Holding sleeves, collars and pants while your partner tries to rip free puts high loads through the small finger joints and tendons, especially with pistol grips, spider guard and lasso guard. Fingers also get caught in the gi, jammed on the mat, bent back in scrambles, and twisted when a grip is broken suddenly.
What are the most common BJJ finger injuries?
Joint sprains are the most common: a swollen, stiff knuckle, usually the middle joint of the finger, after it's bent sideways or backwards. Over time, repeated sprains and heavy gripping can leave joints thickened and achy. Tendon and pulley strains cause pain on the palm side of the finger with gripping. Jammed fingertips can injure the tendon that straightens the tip, leaving it drooped (mallet finger). Thumb sprains happen when the thumb is forced outwards.
Is my finger sprained or broken?
It can be hard to tell. Get an X-ray if the finger looks crooked or rotated, you can't fully bend or straighten it, a fingertip droops and won't straighten on its own, there's a lot of swelling and bruising, or pain over the bone is severe. A dislocated finger that has been put back in place should still be X-rayed, as small fractures are common.
Should I tape my fingers for BJJ?
Taping helps many grapplers. Buddy taping a sore finger to its neighbour gives support after a sprain. For joint support, a common method is a strip of narrow tape above and below the sore joint, joined by a cross (an X) over the sides of the joint, which limits sideways movement while still letting you bend it. Tape shouldn't be so tight that the fingertip changes colour or goes numb.
How do I treat a sprained finger?
In the first couple of days, ice and gentle compression can ease swelling. Keep the finger moving gently within comfort, as fingers stiffen quickly when held still. Buddy tape for training and daily tasks. Swelling in finger joints is slow to settle and often lasts weeks to months, even after pain has gone.
What exercises help sore fingers and hands?
Useful options include making a full fist and fully opening the hand, tendon glides, squeezing putty or a soft ball, finger extension against a rubber band, and wrist and forearm strengthening such as wrist curls and reverse curls. Dead hangs and farmer's carries build grip strength once pain has settled.
How can I protect my fingers in training?
Vary your grips rather than relying on one, and let go of grips that are being broken forcefully instead of hanging on to the last second. Train no-gi some of the time to give your fingers a break. Avoid putting your fingers inside the sleeve or pant cuff, which is also illegal in competition. Keep your hands open and off the mat when posting where you can.
Does BJJ cause arthritis in the fingers?
Long-term gi players often develop thickened, stiff finger joints, and many report aching. There isn't good long-term research on arthritis in grapplers' hands specifically. Looking after sprains properly, managing grip volume and keeping your hands strong are sensible steps.
Can an osteopath help finger and hand injuries?
Yes. We assess the joint, ligaments and tendons, refer for X-ray or a hand therapist or specialist when needed, and help with swelling, movement and strength. We'll also advise on taping and how to adjust your training while it heals.
When should a finger injury be checked urgently?
See a doctor the same day for a finger that is deformed or dislocated, a fingertip that droops and can't be straightened, a finger you can't bend, an open wound over a joint, numbness, or a finger that is cold or pale. Tendon injuries and some fractures have much better outcomes when treated early, often with a splint.
For other grappling injuries, see our guide to martial arts and BJJ injuries and our posts on BJJ elbow injuries and wrist pain. Book an assessment at our Berwick clinic. A 60-minute initial consultation is $149, with no referral needed and HICAPS on-site.
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Book an initial consultation at RISE Sports & Spinal in Berwick. Clear diagnosis, hands-on treatment, and a plan that actually gets you better.
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