Around 85 percent of the population has been affected by inflamed sebaceous glands, which lead to pimples and pustules, mostly during puberty on the face, and possibly also on the décolletage and back. However, there are various forms of acne; some occur in newborns or toddlers, while others appear in adulthood in the genital area beneath the skin. Treatments vary significantly depending on the type of acne and range from ointments to antibiotics or hormone therapies. This book provides an overview of acne, its forms, causes, and treatment options.