Read all about bidets in this article in Livestrong.com. Doctor Connor explains who should use them, the different types, which type is best for you, and why you may want to use them. For example, Dr. Connor says that when using a bidet, you are more likely to remove fecal matter than when using toilet paper alone. And because your hands do not have to come into contact with your bottom (like they may while wiping), you are less likely to spread fecal bacteria to the toilet bowl handle, bathroom doors, and sink handles in the bathroom.