==Locations==
*[[Thumb]]
==Diseases and conditions==
*[[Fractures]]: [[X-ray of fractures]] is generally the investigation of choice.
:*[[X-ray of thumb fractures|X-ray of '''thumb fractures''']]
:*[[X-ray of scaphoid fractures|X-ray of '''scaphoid fractures''']]
*[[Polydactyly]] (supernumerary fingers)