In medicine, a catheter (/ ˈkæθətər / [1] KA-thə-tər) is a thin tube made from medical grade materials serving a broad range of functions. Catheters are medical devices that can be inserted in the body to …

Nov 16, 2023 · Urinary catheters are hollow, partially flexible tubes that collect urine from the bladder. Urinary catheters come in many sizes and types.

Jun 27, 2025 · A catheter-associated urinary tract infection (CAUTI) occurs when germs enter the urinary tract through a urinary catheter and cause infection. CAUTIs are one of the most common …

A flexible tube used to deliver fluids into or withdraw fluids from the body.

If you have a catheter, you have a urine drainage bag to hold your pee. Learn more about how to change, clean and care for your bag.

Find out how different types of urinary catheter are fitted and how they work.

catheter (kath-i-ter) A tubular instrument to allow passage of fluid from or into a body cavity. It is often used to drain abscesses. A tube that is inserted through the urethra into the bladder to drain it of …

UC Davis Health Children’s Hospital Patients Patient Education A to Z Comparison: Implanted Catheter vs. Central Venous Catheter

Read medical definition of Catheter

Urinary catheters are used to drain the bladder. Your health care provider may recommend that you use a catheter if you have: Urinary incontinence (leaking urine or being unable to control when you …