What could cause an oil drain plug leak after doing an oil change?

If it's stripped, ask for an ';oversize plug';. They're just a little larger and cut new threads going in. Some oil change places won't change your oil if you have one, though, 'cuz of liability.What could cause an oil drain plug leak after doing an oil change?
drain plug is not torqued, drain plug gasket is damaged, oil pan is damaged, these are just the top three that i see on a daily basis.What could cause an oil drain plug leak after doing an oil change?
it is either not tightened all the way it could of got crossed threaded or the gasket if there is one could be bad drain plug sshould be replaced ever couple oil changes too hope this helps
ether not tight enough or the washer is shot
Cross threaded or stripped oil drain plug.
Your plug is f--cked up.