Rhinitis

Definition

Rhinitis is the inflammation of the nasal mucous membranes, often resulting in symptoms such as sneezing, nasal congestion, and runny nose. It can be caused by infections, allergens, or other irritants.

5 Must Know Facts For Your Next Test

1. Rhinitis can be classified into allergic and non-allergic types based on its cause.
2. Common microorganisms causing infectious rhinitis include viruses like rhinovirus and bacteria such as Streptococcus pneumoniae.
3. Allergic rhinitis involves an IgE-mediated response to environmental allergens like pollen or pet dander.
4. Chronic rhinitis can lead to complications such as sinusitis or ear infections due to prolonged inflammation.
5. Diagnosing rhinitis may involve a physical examination, patient history, and possibly allergy testing or nasal endoscopy.

Review Questions

• What are the primary differences between allergic and non-allergic rhinitis?
• Which microorganisms are commonly associated with infectious rhinitis?
• How does chronic rhinitis potentially lead to other complications?

Related terms

Hypersensitivity: An exaggerated immune response to an antigen that can lead to tissue damage.

Sinusitis: Inflammation of the sinuses often caused by infection or ongoing rhinitis.

Normal Microbiota: The community of microorganisms that reside in various parts of the body and contribute to health.