Why Does Your Stomach Make Noises? Explained

That rumbling, gurgling, or growling sound coming from your belly has a name: borborygmi. It is the sound of gas and fluid moving through your digestive tract as the muscles of your gut contract and push contents along. Almost everyone experiences it, it is usually normal, and in most cases it is not a sign that anything is wrong.

Stomach noises are one of the most common reasons people wonder about their digestion. The sound itself is simply mechanics — liquid and gas being squeezed through a hollow tube. What matters is context: when it happens, whether it comes with pain, and whether other symptoms are present.

Why Does Your Stomach Make Noises?

Your digestive tract is a muscular tube roughly 30 feet long, and it never fully stops moving. This constant motion is called peristalsis — rhythmic waves of muscle contraction that push food, liquid, and gas from your esophagus to your colon.

When those contractions move gas and fluid through a narrow space, the mixture creates turbulence. That turbulence produces sound, the same way water and air gurgle through a pipe. The scientific term for these sounds is borborygmi (singular: borborygmus).

Two things make the sounds more noticeable. The first is the amount of gas and liquid present. The second is how empty the tract is — with less solid material to absorb and muffle sound, the noises travel more easily. That is why a quiet room and an empty stomach often make normal digestion sound louder than it really is.

One clarification that surprises many people: most of the noise you hear is not coming from your stomach at all. The stomach is only one part of the tract. Much of the gurgling originates in the small intestine, which sits lower in the abdomen and does most of the active mixing and moving of digested food.

Why Does My Stomach Growl When I’m Hungry?

Hunger growls are real, and they have a clear physiological explanation. When your stomach has been empty for a while, it produces a wave of strong contractions known as the migrating motor complex. This is sometimes described as the gut’s “housekeeping” wave.

These contractions sweep through the stomach and small intestine, clearing out leftover food particles, fluid, and gas between meals. The squeezing of an empty stomach full of gas and liquid is what produces the classic growling sound. The brain also becomes more sensitive to hunger signals at this time, which is why the noise often seems to arrive right when you notice you are hungry.

Here is the part that catches people out: hunger growls do not always mean you need to eat right away. The migrating motor complex runs on its own schedule. It is a normal housekeeping process, not an emergency alarm. Still, if the sound comes with genuine hunger, feeling lightheaded, or low energy, eating is a reasonable response.

What Causes Loud or Frequent Stomach Noises?

Some people simply have louder digestion than others, and that variation is normal. Beyond individual differences, several common factors make stomach noises more frequent or more noticeable.

• Gas-producing foods. Beans, lentils, broccoli, cabbage, onions, and some whole grains feed gut bacteria that produce gas during digestion. More gas means more to move, and more movement means more sound.
• Swallowed air. Eating quickly, drinking through straws, chewing gum, and carbonated drinks all add air to your digestive tract.
• Carbonated beverages. The gas in fizzy drinks enters your stomach directly and has to travel through the tract.
• High-fiber intake, especially when it increases quickly. Fiber is healthy, but a sudden jump gives gut bacteria more fermentable material and can increase gas temporarily.
• Sugar alcohols. Sweeteners like sorbitol, mannitol, and xylitol are poorly absorbed and can ferment in the gut, producing gas.
• Food intolerances. Lactose intolerance is a common example. When lactose is not fully digested, it ferments in the colon and produces gas and noise.
• Anxiety and stress. Stress affects gut motility through the gut-brain connection. Some people notice more gurgling when they are nervous.

Most of these are harmless. If a specific food reliably triggers loud noises and discomfort, that pattern is worth noting, but it does not automatically mean something is wrong.

When Are Stomach Noises a Sign of a Problem?

Stomach noises on their own are rarely a medical concern. What matters is whether they come with other symptoms. Doctors pay attention to the company the noise keeps, not the noise itself.

Seek medical evaluation if stomach noises happen alongside any of the following:

• Persistent or severe abdominal pain
• Bloating or swelling that does not resolve
• Diarrhea or constipation that lasts more than a few days
• Unexplained weight loss
• Blood in the stool
• Nausea or vomiting that keeps recurring
• A belly that feels hard or swollen

There is one specific pattern worth knowing. In bowel obstruction — a blockage in the intestine — the gut initially becomes very active as it tries to push past the blockage, producing loud, high-pitched, sometimes tinkling sounds. As the obstruction worsens, the sounds can fade to silence. A quiet abdomen combined with severe pain, vomiting, and swelling is a medical emergency.

The opposite also matters. Absent bowel sounds in someone who is unwell can be a warning sign, which is why clinicians listen to the abdomen with a stethoscope. If you are passing gas and stool normally, serious obstruction is unlikely, but ongoing symptoms deserve a professional assessment.

Can You Reduce Stomach Noises?

You cannot switch off normal digestion, and you would not want to. But if the noise bothers you, some practical steps can help reduce excess gas and the sounds that come with it.

• Eat more slowly and chew thoroughly to reduce swallowed air.
• Limit carbonated drinks and chewing gum if they seem to trigger noise.
• Increase fiber gradually rather than all at once, so your gut bacteria have time to adjust.
• Keep a simple food diary to spot patterns with specific foods.
• Stay physically active, which supports normal gut motility.
• If dairy reliably causes gas and noise, consider whether lactose intolerance may be involved and discuss it with a clinician.

These steps target excess gas and swallowed air. They will not eliminate borborygmi entirely, because normal digestion makes sound. That is expected, not a failure.

If you suspect a food intolerance, a clinician can help you sort out which one. Self-diagnosing and cutting out entire food groups without guidance can lead to nutritional gaps, so it is worth getting input before making big dietary changes.

Do Stomach Noises Mean Something Is Wrong With My Gut?

No. For the vast majority of people, stomach noises are a sign that digestion is working, not that it is broken. The gut is a moving, muscular organ, and movement makes sound.

It helps to separate the sound from the symptom. A noisy belly with no pain, no change in bowel habits, and no other complaints is almost always normal. A quiet belly with severe pain, vomiting, or a hard, swollen abdomen is the situation that needs urgent attention.

If you are worried, the most useful thing you can do is notice the pattern. When does the noise happen? Does it follow certain foods? Does it come with discomfort? That information is far more useful to a clinician than the noise itself. If the sounds are frequent, come with pain or changes in your digestion, or simply concern you, a conversation with a healthcare professional is the right next step.