Drinking alcohol gastric mucosa is damaged will appear a variety of gastric symptoms, such as acid reflux and heartburn, stomach pain, stomach bloating, nausea and vomiting, as well as gastric hemorrhage black stools and so on. 1. Acid reflux and heartburn: alcohol for gastric mucosa irritation, alcohol into the human stomach, will stimulate the gastric wall cells secretion of gastric acid, when the gastric acid stimulation of the damaged gastric mucosa, it will trigger heartburn. 2. Stomach pain: when the stimulation of alcohol leads to damage to the gastric mucosa, the sensitivity of the stomach nerves will be significantly higher, the patient will have stomach pain. When alcohol repeatedly stimulate the sensitive nerves of the stomach, leading to excessive contraction of the smooth muscle of the stomach, there will also be paroxysmal pain in the stomach. 3. Stomach bloating: alcohol affects the regular peristalsis of the stomach, and when the peristalsis of the stomach slows down, too much alcohol accumulates in the stomach, which will increase the pressure inside the stomach and cause stomach bloating. 4. Nausea and vomiting: the stimulation of the sensitive nerves of the stomach by alcohol can also lead to reverse peristalsis of the smooth muscle of the stomach, triggering nausea, vomiting and other symptoms. 5. Vomiting blood and black stools: When alcohol stimulates the gastric mucosa leading to the breakage of small blood vessels in the stomach, gastric bleeding can be triggered. When the blood in the stomach is discharged with the vomit, it will lead to vomiting blood, and when the blood in the stomach goes down with the stomach contents and is discharged with the stool, it will also lead to black stool. If the above symptoms occur after drinking alcohol, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then under the guidance of the doctor to treat.