Wernicke's syndrome results in disordered eye movements, very poor balance and difficulty walking, while Korsakoff's syndrome severely affects one's memory, preventing new learning from taking place. Alcohol causes loosening of the muscular ring that prevents the stomach's contents from re-entering the esophagus. Therefore, the acid from the stomach flows backwards into the esophagus, burning those tissues, and causing pain and bleeding. Inflammation of the stomach can also result in bleeding and pain, and decreased desire to eat. These varices are actually developed in response to liver disease, and are extremely prone to bursting and hemorrhaging.
Diarrhea is a common symptom, due to alcohol's effect on the pancreas.
Throughout the intestinal tract, alcohol interferes with the absorption of nutrients, creating a malnourished state. Alcohol interferes with a number of important chemical processes that also occur in the liver. Alcohol can cause changes to all the types of blood cells. Red blood cells become abnormally large. Platelets and blood clotting factors are affected, causing an increased risk of bleeding.