 [ Symptoms ] my 2 year old has had an unpleasant odor in one ear and today i noticed dried blood on the outside what could this be [ Disease ] does your son have tubes in his ears if not then he has most likely experienced a spontaneous rupture of his eardrum due to a middle ear infection another less likely source would be trauma   he put something in his ear or sustained a scratch resulting in an infection in the ear canal itself 