When pimples appear on the face or other body parts, it is usually an indicator of Acne, a skin disease. Having acne is not fatal. All the same, it does put scars on the skin. The pores of the human skin connect to oil glands that are found under the skin. Small canals called follicles connect the pores to the glands. The glands produce an oily liquid. This liquid is called sebum. The sebum is responsible for carrying dead skin cells via the follicles to the skin’s surface. Through the follicle, a small hair grows out of the skin. If these follicles were to be blocked pimples start to grow. As a result, oil accumulates beneath the skin.