What skin condition is characterized by red, inflamed patches of skin?

The skin condition characterized by red, inflamed patches of skin is psoriasis. This chronic condition is marked by the rapid growth of skin cells, leading to thick, scaly patches that can be itchy and painful. The redness and inflammation are caused by an overactive immune response, which results in increased blood flow to the affected areas, causing the characteristic appearance of the patches.

In contrast, eczema, while also presenting with red and inflamed skin, typically comes with additional symptoms like itching and can be triggered by various allergens or irritants. Acne mainly affects the face, back, and shoulders and involves pimples, blackheads, and cysts, while rosacea usually affects the central facial areas, causing redness and visible blood vessels but does not primarily present as patches like psoriasis. Understanding these distinctions highlights why psoriasis is identified specifically by the features mentioned in the question.