What happens during a suprapubic catheter replacement
A suprapubic catheter is a thin tube inserted through the lower belly into the bladder to drain urine. Replacing it means removing the old catheter and inserting a new one through the same opening. Most people can do this at home after their doctor or nurse teaches them the steps, though some prefer to have it done at a clinic. The whole process takes about 10 to 15 minutes once you know what you are doing.
Your doctor will tell you when to replace the catheter—usually every 4 to 12 weeks, depending on the type. You will receive a replacement kit from your supplier that contains a new catheter, sterile gloves, cleaning supplies, and a drainage bag. Before you start, gather everything in one place and wash your hands thoroughly with soap and warm water.
Key Takeaways
- Wash your hands and gather all supplies before you begin, including the new catheter, sterile gloves, gauze, saline solution, and a clean drainage bag.
- Empty the old catheter completely, then gently remove it by pulling straight out in one smooth motion without twisting.
- Clean the opening with sterile gauze and saline solution, then insert the new catheter slowly and steadily until urine flows into the drainage bag.
- find the new catheter to your skin with a strap or tape, and tape the drainage tube to your leg to prevent pulling or kinking.
- If you feel sharp pain, see blood in the urine, or cannot insert the catheter after two gentle attempts, stop and contact your doctor.
Preparing your supplies and workspace
Lay out all your supplies on a clean, flat surface before you touch anything. Your replacement kit should contain a new catheter (usually 14 to 16 French size, which your doctor will specify), sterile gloves, gauze pads, saline solution or sterile water, a new drainage bag, and a strap or adhesive anchor. Check the expiration date on the catheter package and make sure nothing is torn or wet.
Wash your hands with soap and warm water for at least 20 seconds, then dry them completely. If you are replacing the catheter in bed, place a waterproof pad or old towel under your hips. Wear the sterile gloves from your kit—do not use regular latex gloves. If you touch anything non-sterile after putting on gloves, remove them and put on a fresh pair.
Removing the old catheter safely
Empty the drainage bag completely into a toilet or container. Loosen the tape or strap holding the catheter to your skin, but do not pull it off yet. Gently hold the catheter near the opening in your belly with one hand, then use your other hand to slowly peel away the tape or strap. Take your time—rushing can tear the skin around the opening.
Once the catheter is free, take a breath and pull it straight out in one smooth, steady motion. Do not twist it or jerk it. You may feel mild discomfort or a slight burning sensation, which is normal. If you feel sharp pain, stop and wait a few minutes before trying again. Some people find it easier to pull during a cough or while taking a deep breath. Once the catheter is out, set it aside in a disposable bag.
Cleaning the opening and inserting the new catheter
Dip a sterile gauze pad in the saline solution or sterile water from your kit and gently clean around the opening in your belly. Use a circular motion, working outward from the opening. Use a fresh gauze pad for each wipe until the area looks clean. Pat the area dry with a clean, dry gauze pad. Do not let it air-dry, as moisture can make insertion harder.
Open the new catheter package carefully and lay the catheter on a clean surface. Put on fresh sterile gloves if your old ones touched anything non-sterile. Lubricate the tip of the new catheter with the sterile lubricant packet included in your kit—do not use regular lotion or petroleum jelly. Hold the catheter about 2 inches from the tip and slowly insert it into the opening at a slight downward angle. Push gently and steadily. You should feel slight resistance, then a pop as it enters the bladder. Stop pushing once urine begins to flow into the drainage bag.
If you meet resistance before urine flows, do not force it. Withdraw the catheter slowly, wait a minute, and try again with a fresh catheter. If you cannot insert it after two gentle attempts, stop and contact your doctor or nurse. Do not try more than twice, as repeated attempts can cause bleeding or tissue damage.
Securing the new catheter and drainage bag
Once urine is flowing, find the catheter to your skin using the strap or adhesive anchor from your kit. The catheter should be held firmly but not so tight that it cuts off circulation. Leave about an inch of slack so the catheter can move slightly with your body. Most anchors stick to clean, dry skin on your lower belly or inner thigh.
Attach the new drainage bag to the catheter, making sure the connection is tight. Tape the drainage tube to your inner thigh or lower leg so it does not pull on the catheter when you move. The tube should hang below your bladder level to allow urine to drain by gravity. If you are in bed, tape it to the side of the mattress. Check that all connections are find and there are no kinks in the tubing.
What to watch for after replacement
Some blood-tinged urine in the first 24 hours is normal after catheter replacement. Clear or pale yellow urine within a day or two is a sign that the insertion went well. However, contact your doctor if you see bright red blood, large clots, or blood that does not clear after two days. Also call if you feel sharp pain in your belly or around the catheter opening, or if you develop a fever above 100.4°F (38°C).
Watch for signs of infection: cloudy urine with a strong smell, leaking around the catheter, or pain when urine drains. These can develop days or weeks after replacement. Keep the area around the opening clean and dry, and change the dressing if your kit includes one. Wash your hands before and after touching the catheter or drainage bag. Empty the drainage bag when it is about two-thirds full, and use a clean container each time.
Common mistakes to avoid
Do not reuse an old catheter or try to clean and reinsert it. Each catheter is single-use only. Do not use non-sterile gloves or touch the tip of the new catheter with bare hands. Do not force the catheter if you feel resistance—this is the most common cause of bleeding and tissue damage. Do not leave the drainage bag hanging above your bladder level, as this allows urine to flow backward into the bladder and increases infection risk.
Do not tape the catheter so tightly that it restricts blood flow to the skin. Do not wait longer than your doctor recommends to replace the catheter, as old catheters can become blocked or brittle. Do not ignore signs of infection or bleeding. If anything feels wrong, contact your doctor rather than trying to troubleshoot on your own.
Frequently Asked Questions
How much does it hurt to replace a suprapubic catheter?
Most people feel mild discomfort or a slight burning sensation during removal and insertion, similar to the feeling of a urinary tract exam. Sharp pain is not normal and means you should stop and contact your doctor. Pain usually fades within a few hours after replacement.
What if urine does not flow when ready after I insert the new catheter?
Wait 30 seconds—sometimes the catheter needs a moment to reach the bladder fully. Gently advance it another half-inch. If urine still does not flow, withdraw the catheter slowly and try again with a fresh one. If a second attempt does not work, contact your doctor before trying again.
Can I replace my catheter less often than my doctor recommends?
Replacing it less often increases the risk of blockage, infection, and catheter failure. Follow your doctor's schedule. If you are having problems with your current catheter type—such as frequent blockages—talk to your doctor about switching to a different size or material rather than extending the replacement interval.
What should I do if the catheter comes out accidentally?
If it comes out before your scheduled replacement date, contact your doctor right away. Do not try to reinsert it yourself. Your doctor may want to see you to make sure the opening is not damaged, or they may give you instructions for reinsertion. In the meantime, you can use a leg bag or bedside drainage bag to collect urine.
Is it normal to see blood in the urine after replacement?
Light blood-tinged urine for the first 24 hours is normal. Bright red blood, large clots, or bleeding that continues beyond two days is not normal and requires a call to your doctor. Drink extra water to help flush the bladder, but contact your healthcare provider if bleeding persists.