Which type of dermatitis is characterized by red, inflamed skin?

The type of dermatitis characterized by red, inflamed skin can be attributed to both atopic dermatitis and contact dermatitis. Atopic dermatitis, also known as eczema, presents with symptoms including red patches, intense itching, and dry skin. This condition is often chronic and can flare up in response to various triggers, leading to significant inflammation and discomfort.

Contact dermatitis occurs when the skin reacts to a specific irritant or allergen, resulting in a localized inflammatory response. This type of dermatitis also manifests as red and inflamed skin, accompanied by swelling, itching, and in some cases, blistering. The inflammation results from the skin's immune response to the triggering substance.

Given that both conditions can present with similar symptoms of red and inflamed skin, indicating inflammation, the answer encompasses both types of dermatitis. They share common characteristics that align with the definition provided in the question, confirming that both conditions lead to visible redness and inflammation of the skin.