Allergic rhinitis is a collection of symptoms, mostly in the nose and eyes, which occur when you breathe in something you are allergic to, such as dust, dander, or pollen.
This article focuses on allergic rhinitis due to outdoor triggers, such as plant pollen. This type of allergic rhinitis is commonly called hay fever.
For information on other types of allergies, see:
Allergies Allergy to mold, dander, dust Asthma
Hay fever; Nasal allergies
Causes, incidence, and risk factors
An allergen is something that triggers an allergy. When a person with allergic rhinitis breathes in an
Hay fever involves an
The pollens that cause hay fever vary from person to person and from region to region. Tiny, hard to see pollens more often cause hay fever. Examples of plants commonly responsible for hay fever include:
- Trees (deciduous and evergreen)
The amount of pollen in the air can play a role in whether hay fever symptoms develop. Hot, dry, windy days are more likely to have increased amounts of pollen in the air than cool, damp, rainy days when most pollen is washed to the ground.
Some disorders may be associated with allergies. These include
Allergies are common. Your genes and environment may make you more prone to allergies.
Whether or not you are likely to develop allergies is often passed down through families. If both your parents have allergies, you are likely to have allergies. The chance is greater if your mother has allergies.
Review Date: 06/29/2010
Reviewed By: Paula J. Busse, MD, Assistant Professor of Medicine, Division of Clinical Immunology, Mount Sinai School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.