What is birch pollen?

Birch pollen is the fine, powdery substance produced by birch trees during their reproductive cycle, typically in spring. It contains male gametes and is dispersed by the wind to fertilize female flowers, facilitating seed production. Birch pollen is a common allergen, causing seasonal allergic rhinitis, or hay fever, in many individuals due to its high allergenic potential. Its presence in the environment can trigger allergic reactions in sensitive people, leading to symptoms like sneezing, runny nose, and itchy eyes.