What Are the Pros & Cons of a Waterproof Cast?

There are two things you can get very tired of when you are wearing a cast: people asking what happened and having to wrap the cast in plastic every time you shower. There is not much that medical innovation can do about the first problem, but there are now waterproof casts.

What Is a Waterproof Cast?

A cast is made up of a soft lining and a hard shell. Traditional casts were made of plaster and lined with cotton. Both materials could be ruined if they became wet.

What is a waterproof cast made of? Today’s cast are often made with a fiberglass outer shell, which does not absorb water. Until recently, however, they were still lined with cotton. There are now newer synthetic materials that can replace the cotton and make the entire cast water-proof. These casts can be worn in the shower, tub, or swimming pool with no additional protection from the water.

Pros and Cons of Waterproof Casts<


  • Waterproof casts are much more convenient since you do not have to worry about ruining them with water.
  • Because the lining is water proof, it will not absorb sweat or trap water inside the cast. This virtually eliminates the odor that can accompany a traditional cast.


  • On the down side, waterproof casts are usually more expensive, and many insurance policies do not cover the added cost.
  • Even though most of the water comes out of the cast when you tip it down, it can take an hour for the lining to feel completely dry. Because it’s waterproof, the liner doesn’t get wet, but the water can run out or drip from the cast, making it a good idea to have a towel handy when you first get out of the water.

Are Waterproof Casts for Kids an Option?

While it is normally physician preference, there is typically no reason a child cannot have a waterproof cast if the doctor approves.

These casts make the healing process much easier for children since they do not have to be so careful about getting the casts wet. Waterproof casts perform best when they are rinsed out with forceful stream of water, particularly when coming out of pool.  Make certain to rinse out soap after a bath or shower.

If you have questions about whether a waterproof cast is right for you or your child, give us a call today. We are always happy to discuss your options and help you ask the right questions to your doctor about your broken bones and the types of casting they provide.

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