Tendon · Arm · Finger extensors
Finger pain
Common at this spot
Ordered by how common, not by search volume.
-
Extensor tendinitis of the hand
The back of the hand aches and hurts when you straighten the fingers
Why it happens
A tendon swells after an injury — here, the extensor tendons across the back of the hand. It comes from sudden movements or repeated exercise such as running, jumping, or throwing, and from repeating the same motion with poor form or technique.
How it feels
- Pain in the tendon that gets worse when you move
- Trouble moving that joint
- A grating or crackling feeling when the tendon moves
- Swelling, sometimes with heat or redness
How long it usually lasts
Mild tendonitis should feel better within 2 to 3 weeks.
When to see a doctor
See a doctor if it has not improved after a few weeks. Get urgent advice if the pain is severe or you think the tendon has ruptured.
Source: NHS (UK)
-
Mallet finger
The fingertip droops and won't straighten on its own
Why it happens
An injury to the end of the finger leaves the tip bent so it will not straighten. It is a common sports injury.
How it feels
- The fingertip is bent and cannot be straightened
- Pain or tenderness
- Swelling or bruising
How long it usually lasts
The splint is worn for up to 8 weeks, and another 8 may be needed if it has not healed. It takes several months for the finger to feel normal again.
When to see a doctor
Get advice if you cannot straighten the finger, or if it is painful, swollen, or bruised.
Source: NHS (UK)
-
Extensor overuse
Long typing sessions leave the back of the hand tired and stiff
-
Boutonnière deformity
The middle joint bends while the fingertip stays cocked back
-
Sagittal band rupture
The tendon feels like it slides sideways over the knuckle