Pediatric adenoid hypertrophy and allergic rhinitis are two completely different diseases, the difference includes the cause, symptoms, treatment and so on. 1. Causes: adenoid hypertrophy is a pathologic hyperplasia caused by repeated inflammatory stimulation of the adenoids, allergic rhinitis is due to the body’s autoimmune over-excessive chronic reactive inflammation of the nasal mucosa. 2. Symptoms: The enlarged adenoids can block the posterior nostrils or compress the eustachian tubes to varying degrees, resulting in nasal congestion, runny nose, stuffy ears and other symptoms. Allergic rhinitis is mostly induced by the stimulation of allergens, such as dust mites, pollen, animal dander, etc. It mainly manifests as nasal itching, sneezing, nasal discharge, nasal congestion and so on. 3. Treatment: some enlarged adenoids can gradually shrink and disappear with age, and those with obvious enlarged adenoids need to undergo surgical treatment. The most effective treatment for allergic rhinitis is to avoid contact with allergens, for allergic symptoms can be prescribed by the use of anti-allergy drugs to alleviate, such as cetirizine, loratadine and so on. These are some of the differences between the two diseases, specific differential diagnosis is recommended to consult a professional doctor, the emergence of the above diseases are recommended to consult a doctor in a timely manner.