I understand that sperm dies within several minutes of being outside the body but what I am unsure if it what gets rid of/kills it. Say you had fresh sperm on your hand and you simply wiped it on a dry cloth. Wiping it away made the hand dry, and the white substance disappear. But what I want to know is that if wiping it away Is enough to get rid of it, and once the white substance is not there, does that mean there's no sperm left on your hand? As I believe sperm is microscopic. Thanks in advance!