Adenoids are small patches of tissue located at the back of the throat. They are similar to the tonsils and located right above them. Your tonsils can be seen if you look at the back of your throat, but the adenoids aren’t directly visible. Both adenoids and tonsils are part of the immune system, which helps to prevent and fight infection in your body.
The adenoids can cause problems if they become enlarged. Fortunately, they’re not an essential part of the immune system, and they can generally be treated by removing them.
What causes enlarged adenoids?
Adenoids are present at birth. They grow until a child is between the ages of 3 and 5. Normally, they begin to shrink after around age 7. They shrink considerably in adulthood.
They’re located in the passage that connects the back of the nasal cavity to the throat. They produce antibodies to help your body fight off infections. During the early years, adenoids help protect infants from infection by trapping bacteria and viruses that enter the body through the nose.
Adenoids that become infected usually become enlarged, but return to their normal size when the infection subsides. However, in some instances, the adenoids remain enlarged even after the infection is gone.
Enlarged adenoids can also be caused by allergies. Some children have enlarged adenoids from birth