Acne is a common skin condition that manifests as blackheads, whiteheads, and pus-filled spots (pustules). It can range from a few blemishes on the face, neck, back, or chest—often experienced during teenage years—to more severe cases that may lead to scarring and impact self-confidence. While acne typically subsides by the late teens or early twenties, it can persist or even develop later in life, including in your twenties and beyond.