Types of Acne - Acne is a skin disorder due to blockage of the sebaceous glands. Skin contains thousands of sebaceous glands that produce sebum (oil) that serves moisturize and protect the skin. Sebum produced by the sebaceous glands distributed through the hair follicles (pores) to the skin surface. Acne occurs when sebum that normally come out to the surface of the skin was clogged. Facial skin has a high density of sebaceous glands, especially in the area of the nose, forehead and cheeks. Sebaceous glands most of these are in the middle of the chest and back. Therefore, acne most often appears on the face, chest and back.
The cause of acne is unknown, but associated with hormonal activity in adolescence. In general, acne begins at age 10 to 15 years and will be lost when entering the age of 25 years, but in about 7% of people, acne continues until age 40, even 50 years. The main factors that cause acne is hormonal imbalance, food triggers, stress and lack of hygiene in total skin causing excessive sebum production, follicle blockage, infection and colonization of the bacteria Propionibacterium acne and inflammation (inflammation).
Types of Acne can be classified according to the type of lesion, if there is inflammation or not.