Heartburn and indigestion are sometimes confused, but they are two distinct illnesses.
Indigestion can relate to a variety of problems with the digestive system.
Indigestion is frequently brought on either by overeating or eating too rapidly, oily, fatty, or spicy foods, or excessive use of caffeine, alcohol, chocolate, or fizzy drinks.
Heartburn, on the other hand, is a condition in which stomach acids flow into the esophagus.