Acne scars are the scars that are the leftover marks of acne. Even though the reason and the occurrence of acne scars is still not understood but yes this is for sure that some people are more prone to develop acne scars than others. The scarring on the skin usually occurs due to inflammatory nodulocystic acne that occurs deep in the skin but scarring also may arise from more superficial inflamed lesions.

Acne scars are of two types. One type is the scars caused by increased tissue formation known as keloids scars which in simple words means the overproduction of collagen that is a response of skin cells to injury. The excess collagen becomes piled up in fibrous masses, resulting in a characteristic firm, smooth, usually irregularly-shaped scar. This type of acne scar is typically 1 to 2 millimeters in diameter, but some may be 1 centimeter or larger. This type of acne scars usually run in genes as they are transmitted within the families.

The second type of acne scar is the scar that is caused due to loss of tissue for example ice-pick scars that are usually formed on the cheek. They are small, with uneven edge and steep side. Ice-pick scars may be shallow or deep, and may be hard or soft to the touch. Soft scars can be improved by stretching the skin; hard ice-pick scars cannot be stretched out. Another is the depressed fibrotic scars that are usually quite large, with sharp edges and steep sides. Third are the Atrophic macules that are small when they occur on the face, but may be a centimeter or larger on the body. Fourth and last is the follicular macular atrophy which is more likely to occur on the chest or back of a person with acne and may persist for a month or a year.

Now when we take a look at the treatment of acne scars there are several of them available for example the injection of collagen which is a normal substance of the body. Collagen is injected under the skin to "stretch" and "fill out" certain types of superficial and deep soft scars but the point to note here is that this treatment does not work for ice-pick scars and keloids.

Second treatment involves the fat transfer when the fat is taken from another site of the patient's own body and prepared for injection into his/her own skin. The fat is injected beneath the surface of the skin to elevate depressed scars. This method of transferring fat from one's own body part to one's own another body part is usually used to correct deep line defects caused by scarring from nodulocystic acne. Because the fat is reabsorbed into the skin over a period of 6 to 18 months, the procedure usually must be repeated.

Third most effective treatment of acne scars is the by giving the local anesthetic, a high-speed brush is used to remove surface skin and alter the lines of scars. Superficial scars may be removed altogether, and deeper scars may be reduced in depth but a point should be cleared that this treatment is not recommended for all kind of scars. It may make ice-pick scars more noticeable if the scars are wider under the skin than at the surface. In darker-skinned people, this may cause changes in pigmentation that require additional treatment.

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