Striae, or what is most commonly know as stretch mark to most people, are some of the most annoying condition of the skin. This usually occurs when the body grows quickly, such as the case with gaining weight. The stretch marks are formed when the dermis cannot catch up or deal with the stretching, meaning its elasticity is not flexible enough to cope with the stretching. The dermis tears and wherever the skin has reddened is the area most likely that stretch marks will occur. If not prevented earlier, one has to the option of removing stretch marks by surgery.