They form black or purplish scars that can last several years.

Seeking Treatment for Adults Other researchers are trying to determine precisely why fetuses do not form scars, hoping that they can find a treatment to prevent scarring in adults.

While all piercings can be stretched to some degree, cartilage piercings are usually more difficult to stretch and more likely to form hypertrophic scars if stretched quickly.

And they are a particular problem for them too, because the skin of blacks tends to form large scars known as keloids more easily than that of whites.

It takes decades to form scars so deeply in the crevices of the brain that they show through to the surface.

The patient usually goes home the next day, with only four punctures to form scars.

An exception to this is animals with regeneration, which do not form scars and the tissue will grow back exactly as before.

Massive injuries (such as burns) can cause loss of a large area of skin and may form hypertrophic scars.

Patients who know they form keloid scars and are anticipating surgery should tell the surgeon in advance.

These form scars, or scleroses, which are surrounded by water and affect the action of the brain.