A gaston you can't hold body tension on. An undercling that folds the moment you weight it. A top-out that turns into a wrestling match every time. None of those is a finger problem.
Find the move that keeps stopping you. The direction it names is the work.
Search that move and you will mostly find articles telling you to train your wrists, which is true and almost useless. Your wrist moves in six directions. Your problem move is asking for two of them, and until you know which two, extra wrist volume still misses the move.
Find your move
Read down the first column until you find the thing that keeps stopping you. Everything after that is one link away.
| The move | What your wrist is actually doing | Where the answer lives |
|---|---|---|
| Gaston | Deviation and rotation. The forearm doesn't stay in a bend-and-straighten world here, and control comes from tilting toward the thumb while managing the twist. | Directional work for deviation, rotation work for the twist |
| Sidepull | Deviation, same plane as the gaston. Tilting toward the thumb or the pinky under load, on a hold that is pulling your hand sideways rather than down. | Directional work, plus side levering for the same plane at a longer lever |
| Undercling | Flexion and supination. Curling the palm toward the forearm while the palm has to face you under load. | Reverse levering for flexion, rotation work for the supination half |
| Mantle or top-out | Extension, under a press rather than a pull. The back of the hand bends up and has to hold a line while you push through it. | Forward levering, and the extension movements in the wrench library |
| Sloper | Extension, under a pull. An open hand on a rounded hold puts the wrist bent back while the fingers pull hard, and the back of the wrist carries it. | Extension work in the wrench library; a dedicated sloper article is coming |
| Compression and matches | Rotation, mostly pronation, holding two opposing holds against each other while the hands stay turned in. | Rotation work |
Two things worth noticing in that table. The first is how much overlap there is: gastons and sidepulls are the same plane, mantles and slopers are the same direction under opposite loads. Fixing one move usually improves its neighbours, which is why the six-row table is not a six-tool shopping list.
The second is that pull and press are different jobs even in the same direction. A sloper and a mantle both ask your wrist to hold extension, but one does it while your fingers drag you down and the other does it while your bodyweight presses through your palm. The direction tells you what to train. The load tells you how it will feel.
Why the move matters more than the tool
Our post on training every direction your wrist moves makes the underlying argument properly: climbers train one direction, usually flexion, because it is the one that feels like grip, and then get surprised when the joint gives out somewhere else. The full list is flexion, extension, radial and ulnar deviation, pronation and supination. Six directions, and most training programs cover one and a half of them.
That is the whole reason a move-first approach works. The gap in your wrist training is not "not enough wrist training". It is a specific direction that nothing in your week has ever asked for, and your problem move is the thing that found it.
If the answer is pain, this is the wrong article
Worth separating clearly, because the two get confused constantly.
Everything above is about a move you can't do. If the answer to "what happens on that move" is that it hurts, that's a different question with a different destination. Ulnar-side soreness on gastons and pinches, or a nagging ache on the back of the wrist the day after a board session, are recognisable patterns rather than random bad luck, and our twelve-week wrist program is built around them.
And the line under that one: persistent pain, swelling that doesn't settle, or anything sharp is a job for a professional, not for an article. Training around a joint that is already unhappy is how a two-week problem becomes a season.
Now that you know the direction
Nothing here tells you what to buy. Once you know which direction your climbing is missing, the question changes from "what is wrong with me" to "what covers this", and that is a different article: our guide to building a complete wrist stack covers which tool does which job, what to buy first, and how to fit the work into a week without wrecking your finger sessions.
Go there second. It's a much better read once you already know what you're looking for.
The bottom line
"Train your wrists" is a fine instruction and a bad answer to a specific problem. Gastons and sidepulls live in deviation. Underclings want flexion and supination. Mantles and slopers both want extension, under opposite loads. Compression wants rotation. Find the move that keeps stopping you, take the direction it names, and go read the post that owns it. If the move hurts rather than fails, don't train around it. Get it looked at.