Acute adenoiditis is characterized by
fever, runny nose, nasal airway obstruction resulting in predominantly oral breathing, snoring and sleep apnea,
Rhinorrhea with serous secretion in viral forms and mucous-purulent secretion in bacterial forms. In cases due to viral infection symptoms usually recede spontaneously after 48 hours, symptoms of bacterial adenoiditis typically persist up to a week. Adenoiditis is sometimes accompanied by
tonsillitis. Repeated adenoiditis may lead to enlarged adenoids.
Complications of acute adenoiditis can occur due to extension of inflammation to the neighboring organs.