A catheter is a small tube that inserts into the urethra to help remove urine from the bladder. Catheters are vital items for people living with urinary incontinence and thus come in three main types: Foley catheters (better known as indwelling catheters), stay in the urethra for extended periods, intermittent catheters are removed immediately after draining the bladder, and external catheters sheathe the penis for easy protection. Browse all three types of catheters, as well as tubes and more, below: