Gorlin sign

Gorlin sign is a medical term that indicates the ability to touch the tip of the nose with the tongue.[1] Approximately 10 percent of the general population can perform this act, whereas fifty percent of people with the inherited connective tissue disorder, Ehlers–Danlos syndrome, can. Named after pathologist Robert J. Gorlin,[2] it should not be confused with Gorlin syndrome, a serious inherited medical condition also named after him.

Gorlin's sign in a case of Ehlers–Danlos syndrome