A PEG tube is a feeding tube placed directly into your stomach through a small incision in your upper abdomen. PEG stands for percutaneous endoscopic gastrostomy, which simply means “through the skin, using a camera, into the stomach.” Its purpose is to deliver liquid nutrition, water, and medications when you can’t swallow safely or get enough calories by mouth.
Why Someone Might Need a PEG Tube
The most common reason for a PEG tube is difficulty swallowing that isn’t going to resolve quickly. Strokes can damage the parts of the brain that coordinate swallowing, sometimes temporarily and sometimes permanently. Cancers of the head, neck, or esophagus can physically block the path food takes or make swallowing painful, especially during radiation treatment. Progressive neurological conditions like ALS gradually weaken the muscles involved in swallowing.
A PEG tube is typically considered when someone needs nutritional support for more than a few weeks. For shorter periods, a thinner tube threaded through the nose into the stomach (a nasogastric tube) is usually sufficient. But nasal tubes are uncomfortable over time and can irritate the throat, so a PEG becomes the better option for longer-term feeding.
How the Tube Is Placed
The procedure itself is relatively quick, usually taking about 20 to 30 minutes. You receive sedation so you’re relaxed but not under general anesthesia. A doctor passes a thin, flexible camera (endoscope) down your throat and into your stomach to guide placement from the inside. Then a small incision is made in the skin of your upper abdomen, and the tube is pulled through the abdominal wall into the stomach.
The tube is held in place by two parts: an internal bumper that sits inside the stomach, preventing the tube from sliding out, and an external bumper that sits flat against the skin on the outside. Between these two bumpers, the tube passes through the abdominal wall. At the external end, there are ports for connecting feeding bags, syringes, or medication.
Most people stay in the hospital overnight and can begin using the tube for feeding within 24 hours. Soreness around the site is normal for the first few days.
How Feeding Works
There are a few different ways to deliver nutrition through a PEG tube, and your care team will recommend one based on your tolerance and lifestyle.
- Bolus feeding mimics a normal meal schedule. A syringe pushes a set volume of liquid formula into the tube at mealtimes, several times a day. This method works well because the stomach is designed to hold larger volumes of food at once, and it gives you more freedom between feedings.
- Gravity feeding uses a bag hung on a pole or hook above you. The formula drips down through the tube at a controlled rate, similar to an IV setup but into your stomach.
- Pump feeding delivers formula at a precise, steady rate using a small electronic pump. This is common for people who don’t tolerate larger volumes at once, and it can run continuously or over several hours at a time.
Many people use a combination, perhaps pump feeding overnight and bolus feeding during the day. The formula itself is a liquid that contains a balanced mix of protein, carbohydrates, fat, vitamins, and minerals.
Daily Care and Maintenance
Keeping the PEG tube site clean and the tube itself clear are the two main daily tasks. The skin around the tube (called the stoma) should be washed twice a day with soap and water or saline. After cleaning, dry thoroughly around the tube and under the external bumper, since trapped moisture is a common cause of skin breakdown.
Flushing the tube with water prevents clogs, which are one of the most frequent problems. The general routine is:
- Flush with 60 mL of water at least twice a day
- Flush before and after each bolus feed
- Flush every 4 hours during continuous pump feeding
- Flush before and after giving any medication
Using a 60 mL syringe for flushes is important because smaller syringes generate too much pressure and can damage the tube. Medications should be given in liquid form when possible. Crushed pills can clog the tube if they aren’t dissolved thoroughly in water first.
Signs of Problems at the Site
Some minor issues around the stoma are common and manageable at home, but others signal a need for medical attention.
Granulation tissue is one of the most frequent complications. It looks like small, red or pink, moist, bumpy tissue growing around the tube site. It may bleed slightly or produce a yellow, mucus-like drainage. While it’s not dangerous, it can be uncomfortable and is typically treated with silver nitrate or a steroid cream.
A skin infection looks different: redness that spreads outward across the abdomen from the tube site, warmth, swelling, and pus with a foul odor. This needs prompt treatment. Yeast infections also occur, especially in skin folds or moist areas, and appear as a red rash with smaller “satellite” spots spreading away from the main area of redness.
A tube that has accidentally come out is an urgent situation. The stoma can begin to close within hours, so getting the tube replaced quickly matters.
How Long a PEG Tube Lasts
There’s no fixed schedule for replacing a PEG tube. Current clinical guidelines recommend monitoring and changing the tube only when there’s a specific reason, not at a predetermined interval. Reasons for replacement include persistent leaking, repeated clogging that can’t be cleared, visible deterioration of the tube material, or ongoing complications at the stoma site.
Some people eventually switch to a low-profile device, sometimes called a “button,” which sits flush against the skin and is less noticeable under clothing. This swap is typically done after the initial stoma tract has fully matured, which takes several weeks.
When a PEG Tube Can Be Removed
If the underlying condition improves and you regain the ability to eat safely by mouth, the tube can be removed. Guidelines suggest that you should be meeting at least 60% of your nutritional needs by mouth before your team considers stopping tube feeds entirely. The tube should also have been in place for at least 30 days, since the tract between the skin and stomach needs time to heal into a stable channel.
Removal itself is straightforward. The internal bumper is deflated, and the tube is pulled out through the abdominal wall. A dry dressing covers the site, and the hole typically closes on its own within a few weeks. A follow-up visit is usually scheduled 2 to 4 weeks later to confirm the site has healed. During that window, a medication that reduces stomach acid production may be prescribed to minimize leakage through the closing hole and help the tissue seal.