Acne may be mild, moderate or severe and the location of the lesions is generally on the face, back and chest. It is known that a typical acne presentation has both open and closed comedones (blackheads as well as whiteheads), the presence of inflammatory lesions in the form of papules and pustules, scarring, excessive secretion of sebum and post-inflammatory pigmentation.
Pilosebaceous units are found in every location of the body with the exception of the palms, soles, and the top area of our feet, as well as the lower part of the lip. The density of these units is higher on the face, chest, and upper neck, and this is why acne breakouts usually take place in these locations.