Instructed patient about your Foley catheter daily Care: Keep your skin and catheter clean. Clean the skin around your catheter at least once each day. Clean your skin area and catheter after every bowel movement. Always keep your urine bag below the level of your bladder. Keeping the bag below this level will prevent urine from flowing back into your bladder from the tubing and urine bag. Back flow of urine can cause an infection. These will help prevent a bladder or kidney infection and will keep you more.