A pimple is a general term for a clogged hair follicle (pore), which is also known as a comedone. There are a few different types of pimple, and they don't all mean you have acne:
• Blackheads: small, inflamed bumps with a black tip, also known as open comedones
• Whiteheads/pustules: small, inflamed bumps with a pus-filled tip, also known as closed comedones
• Papules: small, inflamed bumps that don't have a pus-filled tip
• Nodules: large (5mm+), inflamed lesions that are deeper than papules or pustules
• Cysts: a more severe form of nodule that often leads to acne scars





