Hand & wrist condition
Mallet finger is a torn tendon at the very tip of the finger — usually from a ball striking the end of an outstretched finger, sometimes from something as ordinary as catching it on a bedsheet. The tendon that lifts the fingertip pulls away from the bone, so the tip droops and cannot be straightened, even though it still pushes straight easily with the other hand. Most heal beautifully without surgery. But the treatment asks something unusual of you: the splint must hold the tip perfectly straight for six to eight weeks without the finger bending even once — and that discipline, more than anything else, decides the result.
Tap any that apply to you — this is guidance, not a diagnosis, but it helps tell a torn tendon from a simple jammed finger.
A tip that pushes straight but will not lift is a mallet finger until proven otherwise — and it needs splinting properly. Most heal without surgery, but only with the tip held perfectly straight throughout. Two things warrant prompt care rather than a wait: a finger that looks crooked or out of line, and any break in the skin over the joint. And if it has been drooping for weeks, do come in — late treatment still works well more often than people expect.
If the finger is sore and stiff but you can still actively straighten the tip, this is more likely a jammed or sprained finger than a torn tendon. Those settle with protection and gentle movement. It is still worth a check if swelling and stiffness persist, since some finger injuries are subtler than they first appear.
The injury is simple to describe and easy to underestimate:
The single most important thing is this: keep the fingertip straight, and keep it straight without interruption. If you have a splint, wear it continuously — day and night — for the full period advised, usually six to eight weeks. Every time the tip is allowed to droop, the healing tendon is pulled apart again and the process effectively restarts, which is by far the commonest reason a mallet finger fails to recover. That includes washing: keep the hand out of the water where you can, and when the splint does need changing, rest the finger flat on a table so the tip cannot drop, slide the splint off and back on along the surface, and have someone help the first few times. Do not test it by bending the tip to see whether it has healed. And do not strap it to the next finger and carry on — buddy strapping does nothing for this injury, because it does not hold the tip straight. If you have no splint yet, keep the finger straight however you can and get it seen quickly.
The right step depends on the stage — tap the one that fits:
Get it splinted properly and promptly — that is nearly the whole treatment. Keep the tip straight in the meantime. An assessment confirms it is a mallet finger, checks with an X-ray whether a bone fragment is involved or the joint has slipped, and fits the right splint. Started early and worn faithfully, the outlook is very good.
The job now is simple to say and demanding to do: never let the tip bend. Wear the splint day and night, change it with the finger flat on a table, and resist testing whether it has healed. Watch the skin underneath for soreness or redness and report it rather than removing the splint. Review appointments check progress and decide when it is safe to start weaning off.
Late is not too late — this is worth assessing rather than accepting. Mallet fingers presenting weeks after injury still respond well to splinting in a great many cases. Where splinting alone will not achieve enough, or a secondary deformity has begun further back in the finger, there are still options. Doing nothing is the one approach that reliably leaves it bent.
Mallet finger treatment is unusual in that almost all of it rests on one thing done consistently:
Tap each card to reveal the truth:
It is an injury to the small tendon that straightens the very tip of your finger. That tendon attaches to the back of the last bone of the finger, and a sudden force bending the tip downwards — most often a ball striking the end of an outstretched finger — can tear it, or pull off the small flake of bone it is attached to. With the tendon no longer connected, nothing lifts the fingertip, so it sits in a permanently bent position. The rest of the finger works normally, which is part of why the injury is so often dismissed as a jam.
There is one simple test that separates them. With a mallet finger you can push the drooping tip perfectly straight using your other hand — the joint itself is fine — but you cannot lift it into that position under your own power, because the tendon that would do the lifting has been torn. A jammed or sprained finger is usually stiff and sore in both directions but can still be actively straightened, at least a little. If the tip pushes straight but will not lift on its own, treat it as a mallet finger until it has been assessed.
Usually not. The great majority heal without an operation, in a splint holding the fingertip perfectly straight while the tendon reattaches. Surgery is considered in a minority of cases: where the injury pulled off a large fragment of bone, where the joint has slipped out of line, where the skin over the joint is broken, or occasionally where splinting has genuinely failed after a proper trial. For most people, the outcome depends far less on whether an operation is offered than on how faithfully the splint is worn.
The splint is worn continuously for around six to eight weeks, sometimes longer, and this is the part that decides the result: the fingertip must not be allowed to bend at any point during that period, not even for a moment. Every time the tip droops, the healing tendon is pulled apart again and the clock effectively restarts. That includes washing and changing the splint — those are done with the finger resting flat on a table so the tip stays straight while the splint is off, ideally with someone helping the first time. It is a small discipline that makes the difference between a straight finger and a permanently bent one.
No, and this is worth hearing if you have been putting it off. Mallet fingers presenting late — weeks after the injury — still respond well to splinting in a great many cases, and a good result is very much still possible. Earlier treatment is better and simpler, so there is no reason to delay further, but late does not mean hopeless. If splinting no longer achieves enough, or the finger has begun to develop a secondary deformity further back, there are still options. The worst approach is to assume the window has closed and do nothing.
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