Acne and acne marks on the face

If acne on the face is shown, it is generally mainly local skin inflammation damage. This inflammation may be caused by infection of hair follicles and sebaceous glands, such as infection with Propionibacterium acnes, thus forming inflammatory papules. If this acne is treated and self-regressed, there may be some pigmentation left behind, which is what normal people call acne marks. Most of them may regress on their own in the later stage.