I woke up with dried blood in my eardrum what could that be?

Eardrum?: How do you know it is your eardrum ? do you mean at the end of the ear canal where it opens from the inside? This can occur with trauma?did you put something in such as a pencil or q tip? Cotton swab? The other things that come to mind is an external canal ear infection or more likely a ruptured ear drum from infection of the middle ear .See your doc for an exam