👉 Accessed pimples, also known as open comedones or microcomedones, are the earliest stage of acne formation. They occur when hair follicles become clogged with sebum (oil), dead skin cells, and sometimes bacteria, leading to the development of small, often painless bumps on the skin's surface. These pimples are typically white or black in color and appear as small, red bumps or flat spots. If left untreated, they can progress to more severe forms of acne, such as papules, pustules, nodules, and cysts, which are characterized by inflammation and can leave lasting scars.