Throwing up or vomiting blood after drinking alcohol is not normal. However, it is not always a medical emergency. There are actually many different triggers that cause people to vomit blood. The amount and color of blood would provide some clues as to the intensity and possible complications. For instance, several streaks of blood in bright red would indicate the presence of a nosebleed. Black flecks might suggest dried blood in the stomach, while lots of blood can be caused by serious conditions.
Regardless of the causes, it is necessary to monitor the signs closely and inform your doctor immediately. The following sections will show you some possible reasons and how to prevent throwing up blood after drinking.