Adenoid hypertrophy mainly occurs in infants and children. It is a congenital disease, meaning that most children are born with varying degrees of adenoid hypertrophy. However, in many children, the adenoids begin to shrink after six months and generally do not cause symptoms. If the adenoids are enlarged, it can lead to the child breathing through their mouth, snoring, and gasping, which may cause facial changes, brain hypoxia, and delayed brain development. In such cases, adenoidectomy might be considered, generally performed under general anesthesia. However, some children with adenoid hypertrophy also have enlarged tonsils, so both surgeries are often performed together. Otherwise, if only the adenoid hypertrophy is treated without addressing enlarged tonsils, problems such as mouth breathing and snoring may not improve.