Indigestion (also called dyspepsia) is when your stomach feels uncomfortable during or after eating. You might feel too full while eating, even before finishing your meal. You might also feel very full afterward or have a burning or aching pain in your upper belly. It's common in adults. Some people only get it occasionally, but others might feel it almost every day.
Most people with indigestion feel more than one of these symptoms:
Some people also feel nauseous (like they might throw up) or bloated (a tight, uncomfortable feeling in the stomach). But these two symptoms aren't always caused by indigestion, they can come from other things too.
People sometimes mix up indigestion with heartburn, but they're not the same thing. Heartburn is a burning pain in your chest that can spread up toward your neck or back. It happens when stomach acid moves up into your food pipe (esophagus), and it can be a sign of a condition called GERD. It's possible to have both indigestion and heartburn at the same time.
To find out if you have indigestion, a doctor will ask about your symptoms and health history and then do a physical exam. The doctor might also order X-rays of your stomach and small intestine to get a closer look. If the doctor thinks a certain type of bacteria (one that can cause stomach ulcers) might be the cause, they may test your blood, breath, or stool.
The doctor might also do a test called an upper endoscopy. First, you're given medicine to make you sleepy and relaxed. Then the doctor gently guides a thin tube with a light and tiny camera on the end down your throat, through your esophagus, and into your stomach. This lets the doctor see if anything looks unusual. Sometimes the doctor will also take a tiny piece of tissue (called a biopsy) to check under a microscope for damage from GERD or an infection.
Indigestion is often not serious, but sometimes it can be a sign of a bigger problem. You should see a doctor right away if you have:
Some people feel less indigestion when they:
A doctor may also recommend medicine, either from the store or by prescription,to calm the stomach or help food move through it faster. If you buy medicine without a prescription, only take the amount written on the label unless your doctor tells you something different. Always let your doctor know if you start taking a new medicine.
If tests show that a certain bacteria (the kind linked to stomach ulcers) is causing the problem, the doctor may give antibiotics to treat it.
Sharifeh Almasaid, MD, MPH, Henry Ford Hospital Program, Detroit, MI and Roopa Vemulapalli, MD, UT Southwestern, Dallas, TX - Published August 2026.
![]() |
Gastroparesis, Nausea & Vomiting, and Dyspepsia - Brian E. Lacy, MD, PhD, FACG |