Adenoid enlargement is uncommon in adults and because examination of the nasopharynx by indirect posterior rhinoscopy is inadequate.
Although it is rare, adults' adenoids can become enlarged, due to a chronic infection or allergy, pollution, or smoking. Even less common is.
Enlarged and inflamed adenoids -- called adenoiditis -- can make It is most commonly seen in children, but sometimes affect adults.
Find out what the adenoids do, when they need to be removed and how the can be helpful in young children, but they're not an essential part of an adult's immune system. A child's adenoids can sometimes become swollen or enlarged.