Home > Medical > Acne > Anatomy of acne Anatomy of acne All sections in Acne » About Acne » Acne and Hormones » Anatomy of Acne » Health Tips » Myths and Facts » Acne News » Psychological Effects » Skincare » Treatment Prevalence and course of acne About 90% of all teenagers get acne, while 20% of all cases are adults. Acne is not limited to teenagers. How a pimple is born There are four factors in the development (pathogenesis) of acne. What is sebum? Sebum is a fatty substance secreted by the sebaceous glands in the skin. It consists mainly of fatty acids, waxes, triglycerides and cholesterol. Ask Paediatrician » Test Micronutrient reference tool » Talk Parenting forum » Like Health24 on Facebook » Top 13 acne tips From girl to woman Incidence of Acne Here are some interesting facts and statistics about the incidence of acne. What do all the terms mean? The correct name for common acne is acne vulgaris. The term “vulgaris” means “common or usual”. What is the medical term for blackheads, pimples and other words often used? Types of acne Acne is acne right? Wrong. You should be able to classify your own type of acne in order to treat it. Anatomy of the skin Your skin: amazing stuff. Tough, yet sensitive, permeable, yet waterproof. It’s flexible, yet strong, considering that it’s very thin. It houses millions of tiny units load more articles advertisement From our sponsors Your retirement - a healthy mindset So many people, why so alone? You can still enjoy the sweet things in life Take the sugar test, it could save your life.