The cause of frequent heartburn is basically due to increased secretion of gastric acid leading to heartburn, which can be caused by several factors. First of all, the patient’s sympathetic excitement produces increased gastric acid, such as gastrinoma can produce excessive gastric acid directly. In addition to this, patients with GERD may experience acid reflux, belching, and indigestion. Some patients also experience irritation of the pharynx and coughing symptoms. After these symptoms appear, it is important to pay attention to the diet and avoid foods that stimulate the increase of stomach acid, such as chili, wine, tea, coffee, and fried foods. Secondly, patients should not lie down immediately after meals, nor should they exercise vigorously. A wise choice is to take a walk 30 minutes after meals, which can help digestion and reduce the symptoms of heartburn at the same time. If the patient is due to a tumor, it is recommended that the patient promptly seek medical attention for further management.