Final answer:
Both acute otitis media (AOM) and ruptured AOM can lead to ear pain (otalgia). The infection can cause the formation of pus, resulting in bulging of the tympanic membrane and inflammation. Fluid buildup can also increase pressure on the eardrum.
Step-by-step explanation:
Both acute otitis media (AOM) and a ruptured AOM can lead to otalgia (ear pain). When the middle ear is infected and unable to drain, it can result in the formation and accumulation of pus, causing moderate to severe bulging of the tympanic membrane and ear pain. Inflammation from the infection may also lead to fever, nausea, vomiting, and diarrhea, especially in infants. The increased pressure exerted on the eardrum can also arise when an infection causes fluid buildup.