Ashtangasamgraha 36.24

36.24

One who has a clear complexion and clear sense organs, desires sense objects, has an unobstructed urge of digestion,
Is endowed with happiness, and possessed of nourishment and strength, is said to be a person of completely purified blood.
Due to contact with foul mud, the spaces between the fingers
Become accompanied by itching and moisture; they call this alasa; black moles are tilakālaka.