People often have heartburn (a burning sensation deep in the chest) along with indigestion. But heartburn is caused by stomach acids rising into the esophagus.
Who Is at Risk for Indigestion?
People of all ages and of both sexes are affected by indigestion. It's extremely common. An individual's risk increases with excess alcohol consumption, use of drugs that may irritate the stomach (such as aspirin), other conditions where there is an abnormality in the digestive tract such as an ulcer and emotional problems such as anxiety or depression.
What Causes Indigestion?
Indigestion has many causes, including:
Stomach cancer (rare)
Gastroparesis (a condition where the stomach doesn't empty properly; this often occurs in diabetics)
Irritable bowel syndrome
Aspirin and many other painkillers
Estrogen and oral contraceptives
Eating too much, eating too fast, eating high-fat foods, or eating during stressful situations
Drinking too much alcohol
Stress and fatigue
Swallowing excessive air when eating may increase the symptoms of belching and bloating, which are often associated with indigestion.
Sometimes people have persistent indigestion that is not related to any of these factors. This type of indigestion is called functional, or nonulcer dyspepsia.
During the middle and later parts of pregnancy, many women have indigestion. This is believed to be caused by a number of pregnancy-related factors including hormones, which relax the muscles of the digestive tract, and the pressure of the growing uterus on the stomach.