Detailed answer

Blackheads, also known as open comedones, are formed when dead skin cells, oils, and bacteria clog the hair follicles. When the contents of blackheads are exposed to air, they oxidize and turn black. Enlarged pores often result from the continual build-up and congestion of blackheads. As the blackheads accumulate within the pores, they stretch and expand the pore openings, making them appear larger. Proper cleansing, exfoliation, and regular professional treatments can help control blackheads and minimize the appearance of enlarged pores.