What is the primary symptom of atopic dermatitis?

The primary symptom of atopic dermatitis is characterized by red, itchy, swollen, and cracked skin. This condition, often seen in infants and young children, manifests due to a combination of factors, including genetic predisposition and environmental triggers. The intense itching is often the most distressing symptom for patients, leading to scratching that can exacerbate the inflammation and skin damage, resulting in the cracked and swollen appearance.

It's important to recognize that the skin affected by atopic dermatitis often appears red and inflamed, which distinguishes it from other dermatological conditions. The significant pruritus (itchiness) linked to this disorder is what drives many individuals to seek treatment, making it a hallmark symptom of atopic dermatitis.

Other options describe different conditions or symptoms that are not representative of the classic presentation of atopic dermatitis. For instance, dry patches without inflammation might suggest a different dermatological issue, while painless thickened skin could relate to other chronic skin problems. Additionally, the presence of yellow discharge from lesions points more toward infection or other inflammatory conditions but does not align with the characteristics of atopic dermatitis itself.