‘I do not mean to pry, but you don't by any chance happen to have six fingers on your right hand?’ - Inigo Montoya #polydactyly https://medicalxpress.com/news/2024-01-rare-disorder-extra-fingers-toes.html
Rare disorder causing extra fingers and toes identified

A rare disorder that causes babies to be born with extra fingers and toes and a range of birth defects has been identified in new research co-led by the University of Leeds.

Medical Xpress