A suprapubic Foley catheter is a hollow, thin and flexible tube that is used to remove urine from the bladder. To insert the tube into the bladder, a small aperture is made in the abdomen near the navel area. Some reasons for draining urine with a suprapubic catheter are because a person leaks urine, has difficulty urinating, or has had some surgery that requires this procedure, explains the National Institute of Health.
People, who require this type of catheter, have to care for it and follow the instruction on how to change it properly. There also is a drainage bag, which attaches to the catheter, that needs to be emptied and changed, explains the University of Michigan Department of Urology. The catheter itself also needs to be changed every 4 to 6 weeks, reports the National Institutes of Health's MedlinePlus. People require a prescription from their doctors to buy catheters.