👉 Allegedly, pimples are small, inflamed bumps on the skin caused by clogged pores and bacterial infections. When hair follicles become blocked with oil, dead skin cells, and debris, bacteria can thrive, leading to inflammation and the formation of pimples. These bumps can range from whiteheads (closed pores with oil trapped inside) to blackheads (open pores with oxidized oil) and even pustules or nodules if the infection becomes more severe. Factors such as hormonal changes, genetics, diet, and stress can exacerbate the condition, making some individuals more prone to developing pimples.