Why can allergies also occur in autumn?

Symptoms of allergies and hay fever often occur in the fall due to specific allergens that are common during this season.

Although hay fever is usually associated with spring and summer, allergies in the fall can be triggered by other allergens, such as mold, mildew, ragweed, dust, and dust mites.

In the fall, mold spores increase in the air, especially due to humidity and decaying organic matter, such as leaves. These spores can trigger allergic reactions in people who are sensitive to mold allergens.

In some regions, ragweed (a plant that releases a lot of pollen) is prevalent in late summer and fall. Ragweed pollen can spread over long distances and trigger allergies.

As it gets colder outside, people spend more time indoors. Dust and dust mites can then accumulate more quickly in homes, causing allergies to flare up.

Fall is characterized by fluctuating temperatures. This can irritate the airways and aggravate allergies, especially if you are already sensitive.

So while most people associate hay fever with spring, these fall factors can also cause similar symptoms, such as a runny nose, itchy eyes and sneezing.

Author: Prof. Dr. Dirk Devroey - Latest update: 2024-10-28 - Copyright: Clinifacts 2024