It is possible for acne marks to disappear on their own, because the skin will undergo metabolism, and in the process of metabolism, some aging or damaged cells will be broken down to produce new cells, and the acne marks will disappear as a result. When you have a pimple mark on your face, you should first observe the color of the pimple mark. If it is red, the situation is relatively mild, the damaged cells only stay in the epidermis of the skin, and the replacement speed is relatively fast, and it usually takes about three months for the red pimple mark to disappear on its own. The time needed for a black acne mark may be a little longer, because in this case the cells of the dermal layer of the skin are damaged, and it usually takes about a year to disappear. If you want to get rid of acne marks quickly, you can consider using medication or medical laser and other treatments to speed up skin renewal and shorten the time needed to eliminate acne marks.