Unusually scar

Two types of scars are the result of the body overproducing collagen, which causes the scar to be raised above the surrounding skin. Scars take the form of a red raised lump on the skin, but do not grow beyond the boundaries of the original wound. Scars keloid are a more serious form of scarring, because they can growing indefinitely into a large, although benign growth. Keloid scars usually most common in dark-skinned people and n some people, keloid scars form spontaneously.

Although they can be a cosmetic problem, keloid scars are only inert masses of collagen and therefore completely harmless and non-cancerous. However, they can be itchy or painful in some bodys. They tend to be most common on the shoulders and chest. A scar can take the form of a sunken recess in the skin, which has a pitted appearance. These are caused when underlying structures supporting the skin, such as fat or muscle are lost. This type of scarring is commonly associated with acne, but can be caused by chickenpox, surgery or an accident.

Scars can also take the form of stretched skin. These are called striae and are caused when the skin is stretched rapidly (for instance during pregnancy, significant weight gain or adolescent growth spurts), or when skin is put under tension during the healing process, (usually near joints). This type of scar usually improves in appearance after a few time.