What commonly causes swollen and inflamed skin?

Swollen and inflamed skin is commonly associated with dermatitis, which is an inflammatory skin condition that can result from various triggers, including allergens, irritants, or underlying health conditions. Dermatitis manifests with symptoms such as redness, itchiness, and swelling, as the body's immune response reacts to these irritants or allergens, causing blood vessels to expand and fluid to accumulate in the affected areas.

Understanding the nature of dermatitis is crucial for treatment and management. Options related to aging, healthy skin, or pigmentation do not typically indicate an inflammatory response characterized by swelling. While aging can result in changes to skin texture and elasticity, it does not inherently cause inflammation. Healthy skin, by definition, would not exhibit swelling or inflammation, and pigmentation changes refer to variations in skin color rather than a response involving inflammation. Therefore, dermatitis is the clear cause associated with the symptoms of swollen and inflamed skin.