Which of the following is NOT a cause of rhinitis?

Rhinitis is characterized by inflammation of the mucous membrane in the nose, leading to symptoms such as runny nose, sneezing, and nasal congestion. The correct answer indicates that glycosuria is not a direct cause of rhinitis. Glycosuria refers to the presence of glucose in the urine, which typically occurs in conditions like uncontrolled diabetes. While it can contribute to other systemic issues in the body, it does not directly lead to inflammation of the nasal passages or the other symptoms associated with rhinitis.

On the other hand, allergies, viral infections, and environmental irritants are all well-documented causes of rhinitis. Allergies trigger the immune system's response to allergens, viral infections like the common cold can irritate the nasal mucosa, and environmental irritants (such as smoke or strong odors) can also lead to rhinitis symptoms. Therefore, identifying glycosuria as unrelated to rhinitis is important for understanding the various factors that can contribute to nasal inflammation.