Creator: Dr. Heo Ji-young
Published: 2026-07-25T02:43:07.000Z

The Organs in Your Abdomen Ride Up and Down with Your Breath

Anyone who has had a scan of the abdomen has heard the instruction: "Breathe in, and hold."

I think that short sentence tells you a good deal about what is going on in there. Being asked to hold it means that, if you did not, it would all still be moving.

When the Diaphragm Descends, What Lies Below Is Pushed Too

A broad sheet of muscle stretches across the space between the chest and the abdomen. This is the diaphragm. On the in-breath it contracts and travels downward; on the out-breath what was stretched springs back and it returns to where it was. (How the in-breath and the out-breath trade forces with each other is covered in What I Can Tell by Resting a Hand on Your Abdomen.)

Here is the part that is easy to forget. Below the diaphragm nothing is empty. The liver sits right against it, and the stomach and kidneys lie below as well. So when the diaphragm descends it presses those organs down, and when it springs back, what was pressed rides up with it.

The Distance Is Greater Than You Would Guess

Even in quiet breathing the diaphragm travels somewhere between 1 and 2.5 centimeters. Breathe deeply and it travels farther.

That goes on without a pause, awake or asleep. The abdomen is not a place where things settle into position and sit still; it rises and falls with the breath all day long. When I place a hand on someone's abdomen, I am also feeling how far down that rise and fall reaches.

A Scan Is That Movement at a Standstill

That is why a scan asks you to hold your breath. Movement blurs the picture. There is good reason for it, and the image you get shows the shape and size of the organs very well.

But that single frame is the abdomen with its rise and fall stopped. How those organs move with the breath all day is not in it. That is how you get "the abdominal scan is clear, but I feel bloated and heavy all the time." A shape being normal and that shape moving well are two different matters.

I Watch the Out-Breath Before the In-Breath

When someone comes in feeling bloated with a shallow breath, I watch the out-breath rather than the in-breath. Some people take a big breath in, but let it out in a short, hurried way. The next in-breath then begins before the diaphragm has fully returned to the top. The range of that rise and fall narrows a little, and the movement of the organs carried within it grows smaller too.

So rather than telling people to breathe in deeply, I first suggest letting the breath out slowly, all the way. The in-breath usually follows on its own. For an abdomen to settle, one full release can do more than one big pull.

That said, if you become suddenly short of breath, if lying down makes breathing harder, or if abdominal pain comes with difficulty breathing — that is a different story from this one. Being examined comes first.

We tend to picture the abdomen as a room with everything in its assigned place. But inside, it is rising and falling with the breath all day, and a scan is taken after that movement has been briefly brought to a stop.

If your abdomen always feels bloated while the scan comes back clear, what that image could not hold is the abdomen before the breath was held — the state of an abdomen that had been rising and falling all day.

The Organs in Your Abdomen Ride Up and Down with Your Breath

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