What skin condition is characterized by the overproduction of sebum?

Acne is characterized by the overproduction of sebum, which is an oily substance produced by sebaceous glands in the skin. When there is an excess of sebum, it can lead to clogged pores. This creates an ideal environment for bacteria to thrive, leading to inflammation, redness, and the development of lesions commonly associated with acne. The interplay between sebum, clogged pores, and bacteria is fundamental to the pathology of acne.

In contrast, other skin conditions listed have different causes and characteristics. For instance, psoriasis is an autoimmune condition leading to rapid skin cell turnover, eczema is primarily associated with inflammation and dry skin rather than sebum production, and rosacea involves flushing and redness without the primary involvement of excess oil production. Understanding the role of sebum in acne can help guide effective treatment strategies that target the oiliness and associated acne bacteria.