Does an ear discharge mean my baby has an ear infection?

Usually: Most episodes of true ear discharge (pus or blood) represent an infection of the middle ear, commonly referred to as an ear infection. The discharge is coming from either a ruptured ear drum or a surgically placed ear tube. Ear discharge may also represent what is commonly called a "swimmer's ear, " or inflammation of the ear canal, which can be caused by cotton swabs, water or a foreign object.

Possibly -maybe wax?: Ear drainage, especially if it is pus-like, may be a sign of an ear infection, but parents can easily mistake draining ear wax for pus. Even if your baby isn't fussy, it'd be a good idea to have the doc check.

No, could be wax: Not all ear discharge is considered abnormal. Ear wax may drain out of the ear canal and is generally not associated with any pain or discomfort. In a child who has been sick with a cold and severe ear pain, ear drainage could be due to a ruptured ear drum from a middle ear infection. Also if your child has ear tubes, infected drainage may be due to an ear infection as well.