What is the Purpose of a Rectal Tube?

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  • Written By: Erin J. Hill
  • Edited By: Bronwyn Harris
  • Last Modified Date: 25 November 2018
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A rectal tube may be used to help remove gas from the lower intestines or to remove or contain fecal matter. Technically, only a device used to remove flatus is considered to be a rectal tube and feces is removed using a rectal catheter, although many people use both terms interchangeably. Both are generally only used when all other potential treatments have failed.

Trained medical staff may use this device to relieve discomfort in patients who suffer from severe intestinal gas and distention. This is usually only done once gas medications, exercise, and other remedies have been exhausted without adequate results. The tube is inserted into the anus using lubrication to lessen discomfort. This opens the rectum and allows gas to pass more easily while the tube is inserted.

A rectal catheter is used to capture fecal matter. This is usually only used in patients who have had colon surgery or who are otherwise unable to use the restroom normally. The purpose is to control accidental soiling that may cause discomfort for the patient, irritate skin, and expose medical professionals to harmful bacteria.


When using a rectal tube for the purpose of diarrhea control, the tube is inserted into the rectum at one end and is attached to a bag at the other. This allows fecal matter to pass out of the body and into the bag where it is contained and disposed of. The tubing may remain connected to the patient for as long as diarrhea lasts, or until the colon or rectum has fully healed from surgery.

There are risks associated with the use of a rectal tube. Colon perforation can sometimes occur, especially when tubing is inserted by less experienced medical staff. Having a tube inserted for an extended period of time may also put a patient at greater risk for damage to the rectal muscles. This can make control of bowel movements more difficult, especially for those who have had a previous operation or another procedure on the colon or rectum.

Only those who have been fully trained in inserting this tube should use one on a patient. The risks and benefits should be weighed carefully, and the tube should not be used for any longer than medically necessary. When used for distention and intestinal gas, it should be used in combination with less risky methods in order to lessen the use of the tubing.


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Post 4

You can't do enemas with an impacted stool in there; the fluid would just gush back out. One would actually have to manually take the impacted fecal matter out and then try the enema to get the rest out.

Post 3

@tlcJPC – That is absolutely horrible! Sometimes it is a wonder what all one person has to go through in life, isn’t it?

I’m curious if her healthcare providers also tried what is referred to as a colon tube enema. This is exactly what it sounds like, and I think it might have helped her.

Then again, you never know, especially if a person has that sort of list of health issues.

I am so sorry, and certainly hope that she found relief of some sort.

Post 2

A colon tube may not be the most comfortable thing in the world to begin with, but it sure can provide people with a lot of relief.

Gas build up can be quite painful, and we tend to forget that as long as our own bodies are functioning the way that they should. But different surgeries and things can leave a person with this gas trapped inside their body with no way to let it out.

It is during these instances where the discomfort of having something inserted into the anus is far less worrisome than the pain one has if the procedure is not done.

Post 1

It sounds like a rectal catheter is only used in the case of diarrhea. I am wondering if there is anything that can help patients who are severely constipated.

My aunt was diagnosed with cancer, and by the time she was diagnosed it had spread to several places, the worst being on her spine. Radiation treatments were done on her spinal column, and one day she stood up and her back literally broke into three different pieces because it had been badly weakened.

She was instantly paralyzed from the chest down. The pain medications plus the absolute non-movement that she experienced caused her to become incredibly constipated. No amount of laxatives, fiber, enemas or suppositories helped at all.

I was flabbergasted when her at-home nurse actually scraped fecal matter out of her anus to help her get some relief. The stools were rock hard.

It seems that with modern science as advanced as it is that there would be some other way to help people like her.

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