Is a Colonoscopy as Bad as People Fear?

Disclaimer: This article is not medical advice. Always seek advice from a qualified medical practitioner regarding your symptoms, diagnosis or treatment.

This article is based on anonymised discussions from our group on Facebook.

For most people, a colonoscopy is uncomfortable rather than painful. Sedation usually works well, embarrassment is brief, and the most common after-effect is trapped wind. The fear beforehand is often worse than the procedure itself.

What Our Members Told Us About Having A Colonoscopy

We recently asked members of the Diverticulitis Club Facebook group about their experiences of having a colonoscopy. Hundreds of people responded and, perhaps surprisingly, there wasn’t one single story.

Some people described it as straightforward and much easier than they had expected. Others found it uncomfortable or, in a smaller number of cases, extremely painful.

What became clear was that there isn’t a “typical” colonoscopy experience. It depends on factors such as the reason for the test, your bowel anatomy, whether sedation is used, and sometimes simply the individual carrying out the procedure.

For Many, The Build-Up Was Worse Than The Procedure

One of the most common themes was relief afterwards.

One member admitted she had “worked herself up for no reason”, adding that the bowel preparation had been “super easy” and that, because she was sedated, she “never even remembered a thing.” Another wrote that she had been frightened by stories she’d read online but afterwards realised that “the prep wasn’t that big of a deal” and the procedure itself had gone smoothly.

Others echoed the same feeling.

“Completed my colonoscopy yesterday. Really, the worst part of it all was the prep… Came home afterwards and had a nap.”

Several members replied saying that this reassurance helped reduce their own anxiety before upcoming appointments.

Why Do So Many People Dread a Colonoscopy?

The reasons are understandable.

There is the bowel preparation. The thought of the procedure itself. The embarrassment. The worry about what might be found.

“Honestly, I nearly cancelled twice,” said Janet, 64, from Nottingham. “It’s not something you ever imagine doing.”

Peter, 59, from Surrey admitted, “I was more anxious about the anticipation than the test. I kept thinking about worst-case scenarios.”

For many in their 50s and 60s, this may be their first invasive investigation. It can feel like a step into unknown territory.

Community Insight: Why Experiences Differ So Much

One of the most striking things about our Facebook discussion was not whether colonoscopies were painful or painless, it was how different people’s experiences could be.

Some members reported little more than mild discomfort.

Others described significant pain, particularly if they had a tortuous (long and looping) colon, previous abdominal surgery, adhesions or bowel anatomy that made the examination technically more difficult.

As one member explained:

“Many of us have too many loops, kinks and adhesions… the radiologist noticed I was in pain and stopped. Many people like yourself have not felt any pain during the procedure.”

Another member, who was later told she had a redundant colon, wrote:

“Sedation… felt everything… was crying in pain… had to be stopped.”

By contrast, others had completely different experiences:

“I was awake but it was fine… I found the premed absolutely horrendous.”

Another simply commented:

“Had mine Friday. Was not bad at all.”

These stories highlight an important point. Reading one person’s experience, whether very positive or very negative, doesn’t predict what your own experience will be.

Research supports this. A large review found that anxiety before colonoscopy is common and that better information, good communication and appropriate comfort measures can improve the overall patient experience. The authors also noted that comfort varies considerably between individuals, which reflects exactly what our community described. The aim is not only to complete the examination but to make it as comfortable and acceptable as possible for each patient.

What Actually Happens During A Colonoscopy?

A colonoscopy involves passing a flexible camera through the rectum to examine the large bowel. It is commonly recommended after an episode of diverticulitis, ongoing bowel symptoms, or as part of bowel cancer screening.

You are usually offered sedation and pain relief. This does not always send you fully to sleep, but it makes you relaxed and less aware of discomfort.

According to the NHS, a colonoscopy typically takes 30 to 60 minutes. You can read their overview here:
https://www.nhs.uk/conditions/colonoscopy/

Does Sedation Really Help?

In our discussion, this was one of the biggest concerns.

“I was terrified I’d feel everything,” said Elaine, 67, from Glasgow. “But the sedation worked brilliantly. I remember very little.”

That mirrors my own experience. The sedation worked well. I had little pain. There was some discomfort as the camera moved around bends in the bowel, but it was manageable. The team talked me through what was happening, which helped.

Sedation levels vary slightly between hospitals, and you can discuss your anxiety in advance. If you are particularly worried, say so clearly when you arrive.

Is It Painful?

Most members described it as uncomfortable rather than painful.

There can be cramping as air or carbon dioxide is introduced to inflate the bowel so the camera can see clearly. This can cause a stretching sensation.

“I certainly wouldn’t describe it as agony”, said Robert, 72, from London. “More like intense wind that comes and goes.”

The key point repeated in our group was that staff are used to adjusting pace, giving more pain relief if needed, and stopping briefly if you are uncomfortable.

You are not expected to be stoic.

What About Embarrassment?

This is rarely discussed openly, but it was one of the most common worries.

“It’s the indignity”, said Linda, 61, from Essex. “You feel exposed.”

The reality is that endoscopy nurses and doctors do this every day. You are covered as much as possible. The room is clinical and professional. What feels mortifying to you is routine to them.

The embarrassment tends to last minutes. The reassurance of knowing what is happening inside your bowel can last years.

What Is The Bowel Preparation Like?

For many members, this was the least enjoyable part of the whole experience, even among those who found the procedure itself straightforward.

It involves drinking a prescribed solution that empties your bowel, which means frequent trips to the toilet. Some disliked the taste of the solution, others found the trips exhausting, and a few joked that once it started, they barely left the bathroom until it was over.

“It wasn’t pleasant“, said Graham, 65, from York. “But it was straightforward. I just stayed near the loo and kept hydrated.“

Despite the discomfort, most members viewed it as temporary and worthwhile if it meant getting clear answers about their bowel health.

Clear instructions are provided in advance. Following them carefully improves the quality of the test and reduces the chance of needing it repeated.

What Happens Afterwards?

This was the part that surprised many people.

Because air or gas is used to inflate the bowel, trapped wind afterwards is very common.

In a lot of cases, you can feel bloated and uncomfortable. The pressure builds up and sometimes won’t shift.

Ben from New York said, “I had to ask a nurse for advice. She calmly suggested getting onto my hands and knees with my hips raised. It worked spectacularly. The biggest, longest and loudest release of trapped gas I have ever experienced! Immediate relief.“

It may not feel dignified, but it is effective.

Others in the group shared similar experiences.

“I sounded like a brass band”, joked Colin, 70, from Birmingham. “But I felt so much better afterwards.”

Walking gently and changing position can also help.

Why Is Colonoscopy Important After Diverticulitis?

After an episode of diverticulitis, your doctor may recommend a colonoscopy once the inflammation has settled. This isn’t because diverticulitis always leads to bowel cancer – it doesn’t. This is to:

• • Confirm the diagnosis
  • Exclude other causes of symptoms

• • Check for polyps or signs of bowel cancer

The thought of what might be found causes understandable fear. However, early detection of problems significantly improves outcomes.  The examination also assesses the extent of diverticular disease, and exclude other conditions that can produce similar symptoms, including inflammatory bowel disease or, more rarely, colorectal cancer. Your healthcare team will advise whether a colonoscopy is appropriate based on your age, symptoms and medical history.

Avoiding the test because of anxiety can prolong uncertainty.

Practical Tips Our Members Wish They’d Known Before Their Colonoscopy

Although every experience is different, several practical suggestions came up repeatedly in our discussion.

Write down your specific worries before the appointment so you don’t forget to raise them.

Talk about pain relief and sedation beforehand. Some members were very happy with gas and air or conscious sedation, while others said they would request deeper sedation if they ever needed another colonoscopy. If you’re particularly anxious or have had a difficult colonoscopy before, tell the team before the procedure starts.

Stay Close To A Toilet During The Bowel Preparation. Almost everyone agreed that the bowel preparation is the least enjoyable part of the process. Once it starts working, you’ll need quick and frequent access to a toilet, so it’s best to stay at home and avoid making plans until the preparation is complete.

Mention Any Previous Difficult Colonoscopies. If you’ve had a difficult colonoscopy before, or you’re particularly anxious, tell the endoscopy team before the procedure begins. They can explain the options available and help you decide what’s most appropriate for you.

If you’ve previously been told you have a tortuous or redundant colon, mention it. Several members who experienced significant discomfort later discovered they had a longer or more looping colon, which can make the procedure technically more challenging.

Remember why you’re having the test. Among the reassuring stories were several from members whose colonoscopy identified polyps that could be removed or ruled out bowel cancer. One member wrote, “Good part is I’m cancer free!” while another said that although her colonoscopy was difficult, it led to an early cancer diagnosis and treatment.

For many members, the biggest piece of advice was simple: don’t let frightening stories online stop you from having a colonoscopy if your healthcare professional recommends one. While no medical procedure is enjoyable, many people later said they had worried far more than they needed to.

When Should You Contact Your Healthcare Team After A Colonoscopy?

Most people recover quickly after a colonoscopy and are able to return to their normal activities within a day or so. Mild bloating, passing wind and a small amount of discomfort are all common and usually settle on their own.

However, you should seek urgent medical advice if you experience:

• Severe or worsening abdominal pain that doesn’t improve
• Heavy bleeding from the back passage, or persistent bleeding that’s more than a small amount
• A high temperature, chills or feeling generally unwell
• Persistent vomiting or difficulty keeping fluids down
• A swollen, hard abdomen or pain that’s getting progressively worse

These symptoms are uncommon, but they can occasionally indicate a complication such as bleeding or, very rarely, a perforation (a tear in the wall of the bowel). Although serious complications are uncommon, it’s always better to seek medical advice promptly if something doesn’t feel right.

It’s also worth remembering that many people have a colonoscopy after an episode of diverticulitis to confirm the diagnosis or rule out other conditions once the inflammation has settled. If your symptoms continue after the procedure, don’t assume they’re “just diverticulitis”. Arrange a follow-up appointment with your healthcare team so your results and any ongoing symptoms can be discussed properly.

If there’s anything you’re unsure about before or after your colonoscopy, your endoscopy team would much rather answer your questions than have you worrying at home.

Frequently Asked Questions

The Emotional Side

A repeated theme in our discussion was relief.

Relief that it was not as bad as feared. Relief at clear results. Relief at finally having answers.

Fear thrives in silence. Calm, factual information and real experiences help bring perspective.

What Does The Research Say?

If you’ve been reading the comments above, you might be wondering why people’s experiences vary so much.

The medical research reflects exactly that. There is no single “normal” colonoscopy experience.

A 2020 review published in the medical journal Frontline Gastroenterology looked at ways of improving patient comfort during colonoscopy. The authors found that although most people tolerate the procedure well, anxiety beforehand is common and comfort during the examination varies considerably from person to person.

The review identified several factors that can influence the experience, including:

• How anxious someone feels before the procedure
• Whether sedation or pain relief is used
• The skill and technique of the endoscopist
• Individual differences in bowel anatomy
• How well the healthcare team communicates and reassures the patient throughout the examination

Importantly, the researchers concluded that improving patient comfort isn’t simply about giving more sedation. Good communication before and during the procedure, tailoring the approach to each patient and recognising people who may need additional support can all make a significant difference to the overall experience.

This closely matches what our Facebook community told us. Some members described their colonoscopy as much easier than expected, while others found it uncomfortable or painful. Many felt that feeling listened to, understanding what was happening and having a supportive endoscopy team were just as important as the procedure itself.

If you’re worried about an upcoming colonoscopy, don’t be afraid to discuss your concerns beforehand. Let the endoscopy team know if you’ve had a difficult colonoscopy in the past, or are particularly anxious. They can often adjust the procedure, the sedation or the level of support to help make the experience as comfortable as possible.

Perhaps the most reassuring message from both the research and our community is that there is no need to suffer in silence. Colonoscopies are performed every day, and healthcare professionals are increasingly recognising that reducing anxiety and improving patient comfort are important parts of good care – not optional extras.

Key Takeaways

• • Most people describe colonoscopy as uncomfortable rather than painful

• • Sedation is usually effective

• • Embarrassment is brief and staff are professional

• • Trapped wind afterwards is common and normal

• • The reassurance and diagnostic value often outweigh the temporary discomfort

More Reading

Is Diverticulitis A Serious Problem?

What Does Diverticulitis Pain Feel Like?

Ultimate Guide to Diverticulosis and Diverticulitis

Does Food Trigger Diverticulitis? What Our Community’s Experience Reveals

What Can Be Mistaken For Diverticulitis?

Sometimes hearing from someone who has been there makes all the difference.

Reading about colonoscopies online can sometimes make them seem more frightening than they really are. While no medical procedure is enjoyable and experiences differ, the overwhelming message from our community was one of reassurance. Many members wished they had worried less beforehand because the examination itself turned out to be much easier than they had imagined.

Disclaimer: This article is not medical advice. Always seek advice from a qualified medical practitioner regarding your symptoms, diagnosis or treatment.