👉 Acne, often referred to as "pimples," occurs when hair follicles become clogged with dead skin cells and excess oil, leading to inflammation and the formation of various types of blemishes. These can range from small, whiteheads (closed comedones) to larger, red, swollen pimples (open comedones and cystic acne, respectively). The clogging process is typically triggered by hormonal changes, genetics, and environmental factors, which stimulate oil production and cause the follicles to become inflamed. This inflammation can result in redness, swelling, and pain, making acne a common skin concern affecting millions worldwide.