Samuel Hafenreffer
From Infogalactic: the planetary knowledge core
File:Samuel Hafenreffer 1587-1660.jpg
Samuel Hafenreffer
Samuel Hafenreffer (26 April 1587 – 26 September 1660)[1] was a German physician, who in 1660 introduced the definition of pruritus. Pruritus is the "unpleasant sensation" the body produces that provokes a person to scratch themselves.[2] Hafenreffer is also credited as being the author of the first textbook in German speaking countries on the subject of dermatology.[3]
