How does atopy influence the risk of developing allergic conditions like asthma and eczema?
### What is Atopy and How Does it Affect Allergic Conditions? Atopy is a condition related to your immune system that makes you more prone to developing allergic diseases. This condition is often inherited from your parents. When you have atopy, your immune system becomes overly sensitive to common allergens like dust, pollen, peanuts, or shellfish. This heightened sensitivity can lead to stronger-than-normal reactions when you come into contact with these substances. When an allergen enters your body through your skin, airways, or mouth, your immune system overreacts. It treats these allergens as if they were dangerous germs and produces antibodies called immunoglobulin E (IgE). These antibodies cause certain cells to release chemicals that lead to allergy symptoms in your nose, throat, lungs, or on your skin. Atopy can increase your risk of developing several allergic conditions, including: **Asthma:** This condition causes inflammation in your airways and tightens the muscles around them, making it difficult to breathe. Allergens can trigger asthma attacks, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. **Allergic Rhinitis (Hay Fever):** This occurs when your immune system mistakenly identifies harmless substances like pollen or pet dander as dangerous. It releases chemicals that cause symptoms such as a runny nose and itchy eyes. **Eczema (Atopic Dermatitis):** This condition causes itchy, dry, red, and inflamed skin, often appearing inside the elbows, on the backs of the knees, and on the face and scalp. Eczema can flare up in response to allergens like soap or detergent. If you have symptoms like watery eyes, a runny nose, wheezing, or hives and a family history of allergies or asthma, it's a good idea to visit an allergy specialist. They can help identify your triggers and develop a treatment plan to manage your symptoms.