Atopic dermatitis, often known as eczema, is a common skin condition that causes red, itchy, and inflamed patches on the skin. It usually starts in childhood but can occur at any age. People with atopic dermatitis may have a family history of allergies or asthma, making them more prone to this condition. The exact cause of atopic dermatitis is not fully understood, but it is believed to involve a combination of genetic and environmental factors. Triggers can include dust mites, pollen, certain foods, and even stress. Managing atopic dermatitis often involves moisturizing the skin and avoiding known irritants.