CrossFit produces hand injuries no other gym discipline does, because it asks the hands to do three incompatible jobs in the same hour:
- hang from a bar for high-rep gymnastics,
- grip a barbell at near-maximal load, and
- absorb repeated impact and friction
The hands are the limiting tissue in most workouts and the least trained.
Rips and calluses
The signature injury and the most preventable. A thick callus catches on the bar during kipping, the skin shears, and the palm tears open.
- Manage the callus before it rips. File or pumice them flat every week. A raised callus is the thing that catches
- Grips or tape for high-volume pull-ups and toes-to-bar
- Less chalk than you think. Excess chalk increases friction, which is what tears skin
- Once it has ripped: clean it properly, trim loose skin flat, dress it, and keep it covered while it heals. Gym bars are not clean surfaces, and an open palm wound that goes red, hot and increasingly painful over a day or two is an infection, not healing — see cellulitis
The wrist
- Front rack and overhead positions demand extension range most people don’t have, so the wrist gets forced there under load. Mobility work first, wraps second
- Handstand push-ups, burpees and wall walks load the wrist in full extension repeatedly. This is the commonest source of CrossFit wrist pain and it shows up two days later
- Little-finger-side pain that bites on rotation is TFCC territory and worth naming rather than wrapping
- Back-of-wrist pain that persists past a deload: see gym and weightlifting wrist pain
Wrist wraps let you train in a position your wrist cannot yet hold. That is useful once and expensive as a habit.
The elbow and forearm
- Inner elbow pain after pull-up or deadlift volume: golfer’s elbow, and it responds to graded loading rather than rest
- Forearms pumping and failing mid-workout: exertional forearm pain
- A pop at the front of the elbow during a heavy deadlift or a rope climb: distal biceps rupture, with a repair window of roughly two to three weeks. The arm keeps working well enough to talk you out of going. See also powerlifting injuries by lift
The fingers
- A pop while gripping, then pain at the base of a finger: a pulley injury, the same structure climbers tear — see climbing pulley injuries. False grip on rings is the usual mechanism
- A finger that will not bend at the tip after a grip was ripped away: jersey finger, which has a surgical clock measured in weeks
- Hook grip thumb pain that persists between sessions, rather than the normal soreness of learning it
What actually prevents it
- Scale the volume, not just the weight. A hundred kipping pull-ups is a hand workout whether or not the weight is scaled
- Build wrist extension tolerance deliberately, loaded and progressive, before the workout demands it
- Maintain your skin weekly. Two minutes with a file prevents most rips
- Don’t chase a leaderboard time through a hand that is already sore. The hand is the one thing that stops every movement in the sport at once
Stop and get it assessed if
- Any pop or tearing sensation, in a finger or at the elbow
- Numbness or tingling during or after workouts
- Wrist pain worse on rotation than on loading
- A rip that is getting redder and more painful after day one
- A finger that will not fully straighten
If you also race conditioning events, Hyrox loads grip as an endurance problem rather than a strength one, and the two patterns stack.
Every movement in this sport goes through your hands. Train them like the bottleneck they are.
Every article on this site is written using the Closing Window Method: name the window your condition runs on, find where you are in it, and act while it’s still open.