Adenoids Adenoids are a patch of tissue that is high up in the throat, just behind the nose. They, along with the tonsils, are part of the lymphatic system. The lymphatic system clears away infection and keeps body fluids in balance. The adenoids and tonsils work by trapping germs coming in through the mouth and nose. Interesting fact about adenoids Adenoids usually start to shrink after about age 5. By the teenage years, they are almost completely gone. By then, the body has other ways to fight germs . What problems can enlarged adenoids cause? Enlarged adenoids can make it hard to breathe through the nose. Your child might end up breathing only through the mouth. This may cause: · A dry mouth, which can also lead to bad breathing · Cracked lips · A runny nose Loud breathing please visit my youtube channel