Plaster casts are usually white and made from plaster of paris , which you've probably used for school art projects. Plaster of paris is a heavy white powder. When it's mixed with water, it forms a thick paste that hardens quickly. Fiberglass casts are made of fiberglass , which is a plastic material that can be molded or shaped. These casts are lighter and stronger than plaster casts.
Some casts are also waterproof.
This means you can take a shower or a bath without having to protect the cast with a plastic bag or sleeve. If the cast is on your arm, you may be given a sling to help you support and carry it. A sling is a wide piece of cloth or some straps suspended from your neck and looped around your injured arm. If you've broken your leg, you'll probably get crutches to help you walk. When you move the broken area, the sharp edges can move and cause pain .