Skin is a seamless organ, similar to a fine cloth protecting valuable assets. A small tear in that cloth can make a big difference in how it looks. Any burn, injury, or other trauma, such as surgery, can cause a scar. A scar isn't bad if it's small or in a location that's easy to conceal. For cases when a scar is completely visible or large and hard to look at, you may want to have it treated or make it go away. The truth is most scars will never completely go away, until there are some methods that can help reduce its size and change its appearance.