Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia. Related to Elective surgery: urgent surgery, Emergency Surgery. SURGERY, med. jur. That part of the healing art which relates to external diseases; their treatment; and, specially, to the manual operations adopted for their cure. 2.
Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars. No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role.
Guys tend to have more acne than girls do, because their skin makes more oil. Acne can cause a lot of stress and embarrassment, especially for kids who get it first, or get a bad case of it. It's important to remember that acne isn't caused by anything bad you did; it's just something that happens because of puberty.