What Are the Main Symptoms of Dermatitis?

Dermatitis is a broad term encompassing a group of inflammatory skin conditions characterized by redness, itching, and often scaling or blistering. The most common presenting symptoms include pruritus (intense itching), erythema (localized redness), edema (mild to moderate swelling), and xerosis (dry, flaky skin). In acute cases, patients may develop vesicles or weeping plaques; in chronic presentations, lichenification—thickened, leathery skin with accentuated dermatoglyphics—often develops due to repeated scratching or rubbing. Secondary changes such as excoriations, crusting, or post-inflammatory hyperpigmentation or hypopigmentation may also be observed. While symptom severity and morphology vary depending on the specific subtype—such as atopic dermatitis, contact dermatitis, seborrheic dermatitis, or nummular dermatitis—the triad of itch, inflammation, and epidermal barrier disruption remains central to clinical recognition.