I've heard the term elective surgery, but I'm not sure what it means. Is it just a procedure that you choose to get, like a nose job? â Heather. Though the name elective might imply that this type of surgery is optional, that's not always the case. An elective procedure is simply one that is planned in advance, rather than one that's done in an emergency situation. A wide range of surgical procedures can be considered elective. Cosmetic surgeries fall into this category, but so can things like ear tubes, tonsillectomies, and scoliosis surgery.
The cause of acne is not fully understood. Though stress can aggravate acne, it clearly does not cause it. Hormones. Common acne in teenagers starts with an increase in hormone production. During puberty, both boys and girls produce high levels of androgens, the male sex hormones that include testosterone.
Plugged pores create a perfect breeding ground for bacteria, which causes pain, inflammation and swelling. The bacteria and oil can also create deep, painful areas called cysts, which can lead to scarring. Several factors can lead to acne, including: 1  Hormones. 2  Heredity. 3  Some medicines.