External Catheters, also commonly referred to as condom catheters or male catheters, are used by men to treat urinary incontinence. This type of catheter consists of a flexible sheath that slides over the penis just like a condom. Many men find external catheters to be a great alternative to more invasive catheters, such as indwelling catheters that require insertion through the urethra. In addition to being a great alternative, the condom catheter is incredibly easy and straightforward to use, since it is simply rolled onto the penis.