👉 Pimples, or acne lesions, form due to several interconnected factors, primarily involving clogged pores and bacterial infections. When hair follicles become blocked with dead skin cells, oil (sebum) from the sebaceous glands accumulates, creating a breeding ground for Propionibacterium acnes, a bacterium that thrives in such environments. This leads to inflammation and the formation of pimples, which can appear as red, swollen bumps, blackheads (open comedones), or whiteheads (closed comedones). Hormonal changes, genetics, stress, and certain medications can exacerbate these conditions by increasing sebum production or triggering inflammation. Effective management often involves adjusting lifestyle factors, such as improving diet, reducing stress, and using targeted skincare products to unclog pores and combat bacteria.