Heartburn and spit out brown material is considered to be gastrointestinal bleeding, blood after oxidation to form a black material spit out, most commonly seen in erosive gastritis, peptic ulcer and other causes. 1. Epicurean gastritis: gastric mucosa inflammation formed erosion state oozing blood, gastric acid secretion is more, resulting in heartburn nausea, vomiting, blood after oxidation to form a black and gastric contents of the mixture, so spit out a brown substance. 2. peptic ulcer: gastric ulcer, duodenal ulcer, because of the destruction of the protective barrier of the gastric mucosa ulcer surface, gastric acid secretion is more, stimulate the ulcer surface caused by bleeding, resulting in heartburn and vomiting brown material, accompanied by acid reflux, nausea, stomach pain and other symptoms. There are many reasons why heartburn spits out brown material, and do not rule out gastric cancer, gastric fundus esophageal varices bleeding, it is recommended to consult a doctor in a timely manner, to identify the cause of the disease to comply with the doctor’s instructions to use medication, do not take medication on their own, so as to avoid delaying the condition.