trigger thumb
MONDO:0008600Mondo
Findings
No curated finding names trigger thumb yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
A painful disability in the hand affecting the finger or thumb. It is caused by mechanical impingement of the digital flexor tendons as they pass through a narrowed retinacular pulley at the level of the metacarpal head. Thickening of the sheath and fibrocartilaginous metaplasia can occur, and nodules can form. (From Green's Operative Hand Surgery, 5th ed, p2137-58).
Definition from the Mondo Disease Ontology (MONDO:0008600), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of