Blackheads, whiteheads, pimples, and cysts are just a few of the various manifestations of the prevalent skin ailment acne. Look for the following signs of acne to diagnose it: Black and whiteheads are little, light- or dark-colored lumps that appear on the skin when pores become clogged with too much oil and dead skin cells. Whiteheads are closed pores loaded with the same mixture as blackheads, which are open pores filled with oil and bacteria. Small, red spots on the skin, called pimples, can hurt and become inflamed. Infected pores with bacteria result in pimples, which expand and become red. Cysts are huge, uncomfortable lumps filled with pus and may be swollen and red. Bacteria that invade the pores generate cysts, which can be challenging to cure. Always seek the advice of a doctor if you're unclear about whether you have acne. They can suggest the most effective treatment options and assist you in determining the type of acne you have.