Swan neck deformity is a hand deformity in which your fingers are bent abnormally. Your finger’s middle joint bends back more than usual. The tip of your finger is bent down. Swan neck deformity only ...

Swan neck deformity (SND) affects your fingers. It occurs when multiple joints in your fingers bend in unusual positions because of a health condition or injury. SND can cause pain, as well as limited ...

A boutonniere deformity is a condition that affects the joints in one of your fingers. It causes the middle joint of your finger to bend in, and the outermost joint to bend out. It’s also called a ...

Boutonniere deformity causes the middle joint in a finger or thumb to bend inward and the end joint to bend outward. It is possible to correct this using a splint, but sometimes, other treatments are ...