How to Change a Catheter Bag Safely

Changing a urinary catheter drainage bag replaces a full, damaged, or inconvenient bag while keeping the catheter in place. The steps below describe changing a bag connected to an indwelling urinary catheter; they do not explain inserting or removing a catheter. Follow the directions from your healthcare professional and the product instructions, since catheter systems and care plans can differ. If you have not been shown how to change your bag, ask your care team to demonstrate before trying it yourself.

What You’ll Need

A clean replacement drainage bag of the prescribed type
Soap and clean running water, or hand sanitizer if hands are not visibly soiled
A clean, dry work surface and a clean towel or disposable barrier
Any supplies your clinician or bag manufacturer specifies, such as a new drainage-system connector or prescribed cleaning wipes
A container or toilet for emptying the old bag, if it contains urine

Do not use a bag or connector that is damaged, unsealed when it should be sterile, or not intended for your catheter. Do not apply creams, powders, or antiseptics to the connection unless your care team tells you to.

Step-by-Step

Choose a clean place. Set the new bag and supplies on a clean, dry surface. Keep them away from sinks, toilets, pets, and used supplies. Make sure you have enough light to see the connection.
Wash your hands. Use soap and water, rubbing all hand surfaces, then dry with a clean towel. If you use hand sanitizer, let it dry completely. Wash again after handling the used bag.
Check the new bag. Confirm it is the right type and that the tubing and drainage outlet are intact. Close the outlet valve if it is open. Prepare the bag according to its instructions, but do not touch the connector tip or inside surfaces.
Position the old bag. Keep the bag below bladder level, but off the floor. Avoid raising it above the catheter, which can allow urine to flow back toward the bladder. If the bag is heavy, support it so its weight does not tug on the catheter.
Empty the old bag if needed. Hold the outlet over the toilet or a suitable container and open the valve without letting it touch the toilet, container, or your hands. Drain it, close the valve, and wipe the outlet only as directed by the product instructions or your clinician. Do not disconnect the catheter just to empty the bag.
Separate the connection carefully. Follow the instructions for your particular system. If the bag connects directly to the catheter, steady the catheter tubing near the connection and gently separate the connector without pulling the catheter from your body. Avoid touching either open end. Some systems use a valve or a different connector; do not force a part that will not release.
Attach the clean bag. Remove any protective cap without touching the connector end. Join the new bag connector to the catheter securely, using the method specified for that system. Do not touch, rinse, or wipe a sterile connector unless its instructions say to. Never use tape or an improvised fitting to make a loose connection.
Check the setup. Make sure the connection is secure and the tubing is not kinked, twisted, trapped under your body, or stretched. Arrange the bag below bladder level and fasten it to its support as instructed. The bag should not touch the floor.
Dispose of or store the used bag. Follow the manufacturer’s directions and your care plan. Some bags are designed for reuse and others are disposable; do not assume either. If reuse is permitted, clean and dry it exactly as directed. Do not share bags.
Finish with hand hygiene. Wash and dry your hands after handling the used bag and supplies. Make a note of the change if your care team has asked you to track bag changes, urine output, or symptoms.

Common Mistakes

Touching the open ends: Contact can contaminate the connection. Keep connector tips away from fingers and surfaces; if an end is touched or dropped, pause and use the product instructions or call your care team for the right replacement procedure.
Pulling on the catheter: Tugging can cause pain or injury. Hold the tubing steady near the connection and move gently. Stop if it resists.
Letting the bag sit too high or on the floor: Keep it below bladder level and off the floor to reduce backflow risk and contamination.
Leaving a kink or closed valve: A bent tube or shut drainage valve can stop urine from entering the bag. Check the full length of tubing and confirm the outlet is closed only after emptying.
Using household cleaners or improvising: Do not put disinfectants, oils, or unapproved solutions into the catheter or bag. They may damage equipment or irritate tissue.

Tips

Keep a replacement bag and the supplies your care team recommends where you can reach them, especially when away from home.
Read the bag instructions before the first change. Connector styles, cleaning directions, and whether a bag can be reused vary.
Drain the bag before it becomes overly full, following your clinician’s instructions. A heavy bag can pull on the catheter and may interfere with drainage.
Secure the tubing with enough slack for normal movement, without loops that can kink or catch. Do not place the bag above the bladder when sitting or lying down.
If you have limited hand strength, vision, or mobility, ask your care team to show a safer setup or arrange help from a trained caregiver.

Troubleshooting

Urine is not flowing into the new bag: Check that the bag is below bladder level, the tubing is not kinked or compressed, and any required valve is open. Change position gently and look for an obvious bend. Do not tug, flush, or disconnect the catheter again unless your clinician has specifically taught you to do so. Contact your care team promptly if flow does not resume, or if you have discomfort or a feeling of bladder fullness.

The connection leaks or will not stay together: Do not force it or patch it with tape. Keep the area clean and contact your healthcare professional or equipment supplier for instructions and a compatible replacement. If urine spills, clean your hands and the affected surface; avoid touching the open connector.

The catheter comes out, or there is bleeding, severe pain, fever, chills, or cloudy/foul-smelling urine with feeling unwell: Contact your healthcare professional urgently. Seek emergency care for severe symptoms or if you cannot reach your care team and are concerned. Do not try to reinsert a catheter yourself.

You are unsure whether the bag is reusable: Check its label and manufacturer directions, or ask your care team. Do not guess or use a bag that is cracked, discolored, or otherwise damaged.

Frequently Asked Questions

How often should I change a catheter bag?

There is no single schedule for every catheter and bag. Follow the schedule provided by your healthcare professional and the manufacturer; change it sooner if it leaks, is damaged, or your clinician directs you to.

Can I change the bag without changing the catheter?

Often, the drainage bag can be changed while the catheter stays in place, but the system and instructions matter. Do not disconnect a closed system unless your care plan says to, or you have been taught how.

Should I clean the catheter connection with alcohol?

Only if the instructions for your exact system or your healthcare professional tell you to. Some connectors have specific cleaning requirements, and using the wrong product can damage equipment.

Can I reuse a catheter bag?

Some bags are designed for reuse, while others are single-use. Follow the manufacturer’s cleaning, drying, and replacement directions rather than assuming a bag can be reused.

What should I do if urine leaks around the catheter?

Check for a kink or a full bag, but do not tug or adjust the catheter inside your body. Contact your care team for advice, especially if leakage continues or comes with pain, fever, or reduced drainage.

Can I sleep with the drainage bag?

Use the night-time setup recommended for your catheter system. Keep the bag below bladder level, secure it to prevent pulling, and make sure the tubing is not trapped or kinked.

Further reading: MedlinePlus. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.