Stomach pain that comes and goes is one of the most common physical complaints, affecting roughly 1 in 4 people at any given time. The on-and-off pattern itself is actually a clue: it usually means the pain is tied to a specific trigger, like eating, stress, hormonal shifts, or the movement of food through your digestive tract. Most causes are manageable, but understanding the pattern of your pain can help you figure out what’s behind it.
How Intermittent Pain Differs From Constant Pain
Constant abdominal pain that never lets up often signals something that needs immediate attention, like appendicitis or a bowel obstruction. Pain that comes and goes, by contrast, usually reflects a repeating cycle: something triggers the pain, the trigger resolves, and the pain fades until the next episode. That cycle might repeat after meals, during stressful weeks, around your period, or seemingly at random.
The medical term for this wave-like pattern is “colicky” pain, and it typically involves hollow organs like the stomach, intestines, or gallbladder contracting or stretching in response to something. Knowing when your pain shows up, where it’s located, and what makes it better or worse narrows the list of possible causes considerably.
Irritable Bowel Syndrome (IBS)
IBS is one of the most common reasons for recurring stomach pain, and its hallmark is pain that’s closely linked to bowel habits. The diagnostic criteria require abdominal pain at least one day per week for three months, with symptoms that started at least six months earlier. That pain needs to be connected to at least two of the following: it changes when you have a bowel movement, the frequency of your bowel movements has shifted, or the consistency of your stool looks different than usual.
What makes IBS pain come and go is partly explained by something called visceral hypersensitivity. After an infection, injury, or prolonged period of stress, the nerves lining your gut can become overly reactive. Normal sensations that you’d never notice, like food moving through your intestines or mild gas pressure, start registering as pain. Your nervous system essentially stays on high alert even after the original problem is gone. This pathway runs in both directions: stress and strong emotions can amplify the physical sensation of pain in your gut, and gut discomfort can heighten your emotional distress. That feedback loop is a big reason why IBS flares seem unpredictable.
Gut bacteria also play a role. The microbes in your intestines communicate directly with your central nervous system, and shifts in that bacterial population, from diet changes, antibiotics, or illness, can change how your gut feels day to day.
Gallbladder Pain
If your pain hits the upper right side of your abdomen and tends to show up after meals, your gallbladder is a likely suspect. An episode of biliary colic, the formal name for gallbladder pain, lasts anywhere from 20 minutes to a few hours and then resolves completely. It’s triggered when your gallbladder contracts to release bile into the digestive tract. Normally you wouldn’t feel this at all, but if a gallstone is partially blocking the bile duct, the contraction builds pressure behind the blockage and causes intense, sometimes sharp pain.
Fatty or large meals are the classic trigger because fat in your small intestine is what signals your gallbladder to squeeze. This is why many people notice a pattern: they feel fine most of the time, then get hit with significant pain 30 to 60 minutes after eating something rich. Between episodes, they feel completely normal, which can make the pain easy to dismiss until it happens again.
Functional Dyspepsia
Functional dyspepsia causes recurring pain or discomfort centered in the upper stomach, and it often has no visible cause on imaging or endoscopy. The “functional” label means the problem lies in how the stomach and its nerves operate rather than in a structural issue like an ulcer.
Food sensitivities are a common driver. Certain fermentable carbohydrates (known as FODMAPs), lactose, and other dietary triggers can provoke episodes. Stress is another major factor. If your nervous system runs sensitive, you may unconsciously clench abdominal muscles or slow your digestion in response to emotional pressure, producing pain that seems to appear out of nowhere. An elimination diet, where you remove suspected triggers and reintroduce them one at a time, is one of the most practical ways to identify what’s setting off your symptoms.
Endometriosis and Hormonal Causes
For people who menstruate, pain that follows a monthly rhythm deserves special attention. Endometriosis occurs when tissue similar to the uterine lining grows outside the uterus, on the bowels, bladder, or pelvic walls. This tissue responds to hormonal shifts just like the uterine lining does: it thickens, breaks down, and bleeds with each cycle. But because it has no way to leave the body, it irritates surrounding tissue, forms scar tissue, and can cause organs to stick together over time.
The result is pelvic and abdominal pain that typically worsens in the days before and during a period, then eases afterward. Pain with bowel movements or urination is also common during this window. Many people also experience bloating, nausea, diarrhea, or constipation that tracks with their cycle. Because these symptoms overlap heavily with IBS, endometriosis is frequently misdiagnosed or dismissed for years.
Diverticulitis
Diverticulitis involves inflamed or infected small pouches that form in the walls of the large intestine, usually in people over 40. The pain most often lands in the lower left abdomen and can come on suddenly and intensely, or start mild and gradually build. Between flares, many people feel fine, which creates the classic on-and-off pattern. Flares can vary in intensity, with some episodes resolving on their own and others requiring treatment.
What Your Pain’s Pattern Tells You
Paying attention to a few details can help you and a healthcare provider zero in on the cause faster. Consider tracking these specifics:
- Timing relative to meals: Pain within an hour of eating, especially fatty food, points toward the gallbladder or functional dyspepsia. Pain that improves after eating may suggest an ulcer.
- Location: Upper right suggests gallbladder. Upper center suggests the stomach itself. Lower left in older adults suggests diverticulitis. Pain that moves around or is hard to pinpoint is more typical of IBS.
- Connection to bowel habits: Pain that improves or worsens with a bowel movement, or that coincides with changes in stool consistency, leans toward IBS.
- Monthly rhythm: Pain that peaks around menstruation and eases mid-cycle raises the possibility of endometriosis.
- Stress correlation: Flares during high-pressure periods at work or home suggest a strong nervous-system component, common in both IBS and functional dyspepsia.
When Intermittent Pain Needs Urgent Attention
Most causes of on-and-off stomach pain are not emergencies, but certain features change that picture. The American College of Emergency Physicians advises seeking emergency care if pain is sudden, severe, or does not ease within 30 minutes. Continuous severe pain accompanied by nonstop vomiting may indicate a serious or life-threatening condition like a bowel obstruction or perforation.
Other signals that warrant prompt evaluation include unexplained weight loss over weeks, blood in your stool or vomit, fever alongside abdominal pain, or pain that progressively worsens with each episode instead of following a stable pattern. Pain that wakes you from sleep is also worth investigating, since functional conditions like IBS rarely do this.