Adenoids are lymph nodes situated in the throat behind the nose. They form part of the lymphatic system, aiding the immune system in fighting infections and illnesses. Acting as a crucial first line of defense, adenoids work in tandem with tonsils to protect the body from infections. However, when adenoids become infected, they can lead to several health issues, including:

Middle Ear Infection: Adenoids are located near the Eustachian tubes, which connect the middle ear to the throat. When adenoids are infected, the infection can spread to the ear, potentially causing a middle ear infection. Untreated, this can lead to significant consequences, such as hearing loss.
Glue Ear: When adenoids are enlarged or inflamed, they can block the Eustachian tubes, preventing normal mucus drainage from the middle ear. This results in a buildup of sticky mucus that affects hearing and can lead to nasal blockage, mouth breathing, obstructive sleep, and other problems.
Sinusitis: Infection can spread to the air-filled cavities within the skull and facial bones, causing sinusitis.
Chest Infection: Infected adenoids can lead to chest infections, affecting the bronchi (bronchitis) or lungs (pneumonia).
Vomiting: Children with inflamed adenoids may swallow significant amounts of pus while sleeping, leading to thick vomiting.