including frostbite and non-freezing cold injury (NFCI); and heat, including burns. The fingers are commonly affected by diseases such as rheumatoid arthritis and gout. Diabetics often use the fingers to obtain blood samples for regular blood sugar testing. Raynaud's phenomenon and Paroxysmal hand hematoma are neurovascular disorders that affects the fingers. Research has linked the ratio of lengths between the index and ring fingers to higher levels of testosterone, and to various physical and behavioral traits such as penis length and risk for development of alcohol dependence or video game addiction. Etymology The English word finger stems from Old English finger, ultimately from Proto-Germanic ('finger'). It is cognate with Gothic , Old Norse , or Old High German . Linguists generally assume that is a ro-stem deriving from a previous form , ultimately from Proto-Indo-European ('five'). The name pinkie derives from Dutch , of uncertain origin. In English only the digits on the hand are known as fingers. However, in some languages the translated version of fingers can mean either the digits on the hand or feet. In English a digit on a foot has the distinct name of toe. See also Finger snapping Fingerprint Nail (anatomy) Paroxysmal hand hematoma Notes References External links Articles containing video clips