An ear infection (acute otitis) is most often a bacterial or viral infection that affects the middle ear, the air-filled space behind the eardrum that contains the tiny vibrating bones of the ear. Children are more likely than adults to get ear infections.
Ear infections frequently are painful because of inflammation and buildup of fluids in the middle ear.
Because ear infections often clear up on their own, treatment may begin with managing pain and monitoring the problem. Ear infection in infants and severe cases in general often require antibiotic medications. Long-term problems related to ear infections — persistent fluids in the middle ear, persistent infections or frequent infections — can cause hearing problems and other serious complications.
Symptoms
The onset of signs and symptoms of ear infection is usually rapid.
Children
Signs and symptoms common in children include:
- Ear pain, especially when lying down
- Tugging or pulling at an ear
- Difficulty sleeping
- Crying more than usual
- Acting more irritable than usual
- Difficulty hearing or responding to sounds
- Loss of balance
- Fever of 100 F (38 C) or higher
- Drainage of fluid from the ear
- Headache
- Loss of appetite
Adults
Common signs and symptoms in adults include:
- Ear pain
- Drainage of fluid from the ear
- Diminished hearing
