Zits, also known as acne, are small bumps that appear on the skin, often on the face, back, and shoulders. They occur when hair follicles become clogged with oil, dead skin cells, and bacteria. This condition is most common during adolescence due to hormonal changes but can affect people of all ages. There are different types of zits, including blackheads, whiteheads, and cystic acne. Treatment options range from over-the-counter creams to prescription medications. Maintaining a proper skincare routine and avoiding excessive oil can help reduce the occurrence of zits and improve skin health.