Climbing finger injuries

What it is

The flexor tendons in each finger are held against the bones by a series of annular pulleys. The A2 pulley, at the base of the finger, takes the highest load, and the crimp grip - fingers bent sharply at the middle joint with the fingertips flat - multiplies the force on it several times over.

A strained or ruptured pulley is the classic climbing injury. In severe cases the tendon bowstrings away from the bone, which is visible and needs proper management. It is worth taking seriously: climbers routinely return too soon and convert a manageable strain into a long-term problem.

What it feels like

• A pop or crack felt in the finger, usually while crimping
• Pain at the base of the finger on the palm side
• Swelling and sometimes bruising along the finger
• Pain gripping and crimping, and reduced grip strength
• In severe cases, the tendon visibly bowstringing away from the bone when the finger is bent against resistance

What causes it

Most people have more than one of these at once, and they feed each other. Read the list looking for the two or three that sound like your week rather than for the one true answer — the ones that describe you are the ones worth acting on.

Crimp grip loading

The full crimp position multiplies the force on the A2 pulley by a factor of several compared with an open-handed grip. It is the position in which almost all pulley injuries occur.

A foot slipping while crimping

A sudden shock load onto a crimping hand when a foot comes off is the classic mechanism, producing the audible pop.

Rapid increases in climbing volume or grade

Pulley and tendon tissue adapt slowly. Climbers progress in grade faster than their connective tissue can strengthen, which is why the injury clusters in the intermediate years.

Campus boarding and small holds

Dynamic loading on very small holds produces high peak forces. Campus training in particular is associated with pulley injuries and is best introduced late in a climbing career.

Cold fingers and inadequate warm-up

Cold connective tissue is stiffer and less tolerant. Climbing hard on cold fingers is a well-recognised risk, particularly outdoors in winter.

Insufficient recovery between hard sessions

Connective tissue takes longer to recover than muscle. Several hard finger sessions a week without recovery is where cumulative strain builds.

Age and years of climbing

Cumulative tissue change over a climbing career plays a part, and pulley injuries become more likely with more years of loading.

Returning too early

The main determinant of whether a pulley strain becomes a chronic problem. The finger feels usable long before the pulley has healed.

Other structures being the actual problem

Not every finger pain is a pulley. Tenosynovitis, collateral ligament strain and joint capsule injuries all occur and behave differently, so a persistent finger problem is worth having assessed.

Who tends to get it

• Intermediate and advanced climbers, in whom grade often outpaces tissue adaptation
• Anyone climbing predominantly in a full crimp grip
• Climbers doing campus board or small-hold training
• Anyone climbing hard on cold fingers
• Climbers with a high frequency of hard sessions and little recovery

What makes it worse, and what settles it

The qFIT routine for this

Ready-made routineWrist, Hand & Thumb Relief

qFIT already has this one built. It runs massage first, then stretching, then strength — the order that works on a body that is already sore — and every activity in it carries the reason it is there.

The button below opens your Checklist with this routine already selected, so instead of your whole list you land on just its Categories, Targets and Exercises, each with its checkbox, ready to tick as you work through them.

Have more than one problem? Tick yours under My Problems on My Profile and your Checklist's Routine list gains Recommended for my problems — every routine for the problems you picked, merged into one. Your picks stay private; that filter is the only thing they feed.

Get it checked if…

An audible pop with immediate swelling and bowstringing needs imaging and possibly surgery

And whatever the body part: chest pain or unusual breathlessness on exertion; a fever alongside the pain; unexplained weight loss; pain that is constant and unrelated to how you move; new numbness, weakness or loss of bladder or bowel control; or one calf that is swollen, warm and painful. Any of those, stop and get assessed.

How it usually goes

Minor pulley strains recover in three to six weeks; more significant injuries take three months or longer, and complete ruptures with bowstringing may need surgical consideration. The commonest reason a finger injury becomes chronic is returning to full crimping too early. Progressive hangboard loading is now well established as rehabilitation rather than something to avoid, and it is what rebuilds the tissue's tolerance.

Prevalence basis: Climbing medicine surveys

Others the same routine covers

These share the Wrist, Hand & Thumb Relief routine, so the work is the same. If one of them also sounds like you, that is a reason to expect more from it, not less.

This is general information, not a diagnosis, and it cannot examine you. If it matches you, use it to ask better questions of a clinician rather than to replace one.