Indigestion, also known as dyspepsia, is a common digestive issue that causes discomfort in the upper abdomen. Symptoms may include bloating, gas, heartburn, and nausea, often occurring after eating. It can result from overeating, eating too quickly, or consuming spicy or fatty foods. While indigestion is usually not serious, it can be a sign of an underlying condition if it occurs frequently. Lifestyle changes, such as eating smaller meals and reducing stress, can help alleviate symptoms. Over-the-counter medications may also provide relief for those experiencing occasional discomfort.