This is the question people most want answered and least want to ask. It usually arrives near the end of a phone call, slightly sideways: “And is it… I mean, is it actually painful?”
So let me answer it directly, without the reassuring vagueness you’ll find on a lot of clinic websites.
The short answer: for most people, no. There are moments of mild discomfort — a sense of fullness, occasionally some brief cramping — but pain isn’t what I’d expect, and if you were in pain we would stop. The dread beforehand is almost always worse than the treatment itself.
Here’s the more detailed version, broken down by the parts people actually worry about.
The insertion
This is the bit people dread most, and it’s the bit they most often tell me afterwards was nothing like what they’d imagined.
The tube is small, sterile, single-use, and goes in about two inches. It takes a few seconds. Most people describe it as odd rather than painful — an unfamiliar sensation more than an unpleasant one.
Being tense genuinely does make it more uncomfortable, which is a slightly unfair loop when you’re nervous. It’s worth knowing that the anticipation is doing most of the work here.
If you have haemorrhoids, an anal fissure, or any soreness in that area, tell me before we start. Depending on severity, that may mean the treatment isn’t suitable for you — but it’s a conversation to have first, not something to grit your teeth through.
The water going in
Warm water flows in slowly. What builds is a sense of fullness — similar to needing the loo, but arriving gradually rather than urgently.
It isn’t painful. It is, for most people, quite a strange sensation the first time, simply because it’s unfamiliar. By the second or third cycle it stops feeling novel.
The temperature matters here. Water that’s too cool can trigger cramping, which is one of the reasons I monitor and adjust it continuously rather than setting it and leaving it.
The cramping
This is the part that’s honestly uncomfortable for some people, so I won’t pretend otherwise.
As the bowel contracts and releases, you may feel brief cramping — comparable to a mild stomach ache, or the sort of twinge you’d get from trapped wind. It comes in waves and passes within seconds.
Not everyone experiences it. Those who do usually find it’s most noticeable in the first half of the session and settles as things get moving. Light abdominal massage often helps, which is one reason I use it.
What it isn’t: sharp, severe, or sustained. If you felt that, something would be wrong and we’d stop immediately.
What people say afterwards
The most common reaction I get, almost word for word, is some version of: “That was much better than I expected.”
A fair number of people find the session genuinely relaxing once they’ve settled — warm water, a quiet room, someone talking them through it. Some chat throughout. A few nearly fall asleep.
Others find it neutral: not unpleasant, not enjoyable, simply forty minutes that pass without drama.
Very occasionally, someone finds it more uncomfortable than they’d like. When that happens we adjust — pressure, temperature, pace — or we stop. That is always an option and it’s never a problem.
What makes it more comfortable
- Being properly hydrated. This makes more difference than almost anything else. Drink steadily the day before.
- Avoiding fizzy drinks. Carbonation adds gas to the system and makes the whole thing less pleasant.
- Not arriving on a full stomach. Stop eating around two hours beforehand.
- Knowing what’s coming. Tension makes everything harder, and the main antidote is information.
- Saying something. If something feels off, tell me at the time rather than afterwards.
There’s more detail on the first three points in the preparation guide.
You can stop at any point
I want to be unambiguous about this, because I think it’s the thing that actually settles most people’s nerves.
At any moment during the session you can ask me to pause or stop. You don’t need a reason and you don’t need to justify it. Nobody will be disappointed in you and nothing awkward happens next.
Knowing you have that control tends to mean you never need to use it. But it’s there.
Afterwards
You shouldn’t be in any pain after a colonic. Some people feel mildly tender or a bit windy for a few hours, and bowel movements may be irregular for a day or two — that’s normal and passes. The aftercare guide covers the following 48 hours in full.
What isn’t normal: severe abdominal pain, persistent bleeding, fever, or vomiting. These are rare, but if you experience any of them, contact your GP or NHS 111 promptly. Please don’t wait it out or ring me first — get medical advice.
Why “it’s completely painless” is the wrong claim
You’ll find clinics that describe the treatment as entirely painless and wholly risk-free. I’d be wary of that framing — not because the treatment is dangerous, but because absolute claims tend to signal a clinic that’s selling rather than informing.
There’s more on this in my post about common myths, including several claims made within my own industry that I think are indefensible.
When it isn’t right for you
Some conditions make colon hydrotherapy unsuitable regardless of pain tolerance — pregnancy, active inflammatory bowel disease, diverticulitis, recent bowel or abdominal surgery, severe haemorrhoids and others. The colon hydrotherapy page has the fuller list, and the consultation covers it properly.
Colon hydrotherapy is a complementary therapy. It doesn’t diagnose or treat medical conditions and it isn’t a substitute for advice from your GP. If you have ongoing digestive symptoms, please have those looked at first.
Still worried?
Ring or message me and ask. I’d genuinely rather spend ten minutes answering the thing that’s bothering you than have you either not book, or book and spend the week beforehand anxious about it.
If it would help to know exactly how an appointment runs, this walks through it step by step. Otherwise, get in touch or book a session when you’re ready.