A PEG tube (percutaneous endoscopic gastrostomy tube) is a flexible feeding tube inserted through the skin of the abdomen directly into the stomach. It delivers liquid nutrition, water, and medications to people who can’t swallow safely or can’t eat enough by mouth. PEG tubes are typically recommended when someone needs tube feeding for longer than 30 days.
Why PEG Tubes Are Placed
The most common reason for a PEG tube is difficulty swallowing, which can result from stroke, head and neck cancers, progressive neurological conditions like ALS or Parkinson’s disease, or severe brain injuries. In all these cases, the digestive system still works fine, but food can’t get there safely through the mouth and throat. A PEG tube bypasses the swallowing process entirely.
For shorter periods of poor intake (a few weeks or less), doctors typically use a nasogastric tube, which runs through the nose and down the throat into the stomach. But that type of tube irritates the throat, can increase reflux, and carries a notably higher risk of pneumonia. One study found patients with nasogastric tubes were nearly three times more likely to develop pneumonia requiring hospitalization compared to those with PEG tubes. When feeding needs extend beyond about four weeks, a PEG tube is the preferred option.
How the Procedure Works
PEG tube placement is a relatively quick procedure, usually done under sedation rather than general anesthesia. You’ll be asked to fast beforehand, typically nothing to eat for several hours and no clear liquids for at least two hours before the procedure.
A doctor passes a thin, flexible camera (endoscope) through the mouth and into the stomach. The stomach is inflated with air so the doctor can see the stomach wall clearly and identify the best spot on the abdomen for the tube. After numbing the skin with a local anesthetic, the doctor makes a small incision on the abdomen and threads a needle through the skin into the stomach, using the camera inside to confirm placement. The feeding tube is then guided into position and secured with a small disc or bumper that sits against the skin on the outside, plus an internal bumper inside the stomach to keep the tube from slipping out. About 3 to 4 centimeters of tubing sits between the skin and the external bumper.
What to Expect After Placement
Feeding through the new tube typically begins within 4 to 24 hours after placement. Most gastroenterologists start nutrition within that first day, as research shows early feeding doesn’t increase complication risks compared to waiting longer. The site will be sore for the first few days, similar to a small surgical wound.
You can expect to go home the same day or the next day in most cases. The initial adjustment period involves learning how to use the tube for feedings, flush it properly, and care for the skin around the insertion site (called the stoma).
Daily Care and Maintenance
Caring for a PEG tube is straightforward once you learn the routine. Clean the skin around the tube daily with plain soap and water. Hydrogen peroxide and specialty cleansers aren’t recommended. You can use a cotton swab or gauze to gently clean around the site, rinse well, and pat dry. Showering with a PEG tube is fine.
A few key daily habits keep the tube functioning well:
- Flushing: Push 30 ml of water through the tube at least once a day to prevent clogging. Flush before and after every medication, also with 30 ml of water.
- Rotating the tube: Turn the external bumper and tube halfway at least twice a day. Gently push and pull the tube about a quarter inch in and out to prevent the skin from growing around it.
- Dressing changes: Place a clean dressing over the external bumper daily. When changing it, check for redness, drainage, or leakage.
- Securing the tube: Tape the tube to your skin with paper tape to avoid accidental tugging, which can cause skin breakdown.
Giving Medications Through a PEG Tube
Most oral medications can be given through a PEG tube, but they need to be in liquid form or crushed into a fine powder first. Crushing tablets thoroughly is important because larger particles can clog the tube. If a liquid version of a medication is available, that’s usually the easiest option.
One important exception: extended-release or enteric-coated medications should never be crushed. These are designed to release their active ingredients slowly or in a specific part of the digestive tract, and crushing them destroys that design, potentially causing a dangerous dose all at once or making the drug ineffective. Your pharmacist can identify which of your medications are safe to crush and which need an alternative form.
When giving multiple medications, administer each one separately and flush the tube with 5 to 10 ml of water between each medication. This prevents drug interactions and reduces clogging.
How Long PEG Tubes Last
PEG tubes don’t last forever and need periodic replacement. How often depends on the type. Balloon-type tubes, which are held in place by a small water-filled balloon inside the stomach, typically need replacement every 3 to 5 months according to North American guidelines, though studies show they last a median of about 7 months. Non-balloon (or “bumper”) type tubes last significantly longer, with a median lifespan of about 13 months.
Balloon tubes need replacement more often but are easier and cheaper to swap out, sometimes even at home. Bumper-type tubes last longer but require an endoscopic procedure for replacement. Your care team will help determine the right replacement schedule based on the type of tube you have.
Possible Complications
PEG tube placement is generally safe, but complications do occur. Minor issues are fairly common, affecting roughly 1 in 4 patients. The most frequent problem is the tube coming out of place (about 14% of patients), followed by wound infections at the insertion site (about 6%), leakage around the tube (about 4%), and tube blockage (about 2%). Most of these are manageable with basic care or a clinic visit.
Serious complications are rare but include severe infection spreading into the abdominal cavity (peritonitis), significant bleeding, or injury to nearby organs during placement. The risk of these major complications is one reason the procedure is done with a camera guiding every step.
Signs that something needs medical attention include increasing redness or warmth around the site, pus or foul-smelling drainage, fever, abdominal pain, or the tube visibly moving deeper into the abdomen.
When a PEG Tube Can Be Removed
A PEG tube isn’t necessarily permanent. For people recovering from head and neck cancer treatment or stroke, there may come a point when swallowing function improves enough to eat by mouth again. The standard benchmark for removal is maintaining a stable weight for at least three weeks without using the tube at all. Once that milestone is met, the tube can be removed, and the small opening in the abdomen typically closes on its own within a few days.