Large pores are visibly enlarged openings on the skin’s surface, often caused by excess oil, clogged debris, or a loss of skin elasticity. They’re most noticeable in areas with more active oil glands, like the T-zone. While pore size is partially genetic, it can become more prominent with age, sun damage, or acne. Enlarged pores can also trap dirt and oil, leading to breakouts and uneven skin tone. Treatments focus on cleansing, tightening, and supporting healthy skin turnover.