Beer gives you diarrhea. What's going on?

If drinking beer shows diarrhea, it is likely that the patient himself has gastrointestinal dysfunction, so after drinking alcohol, it is easy to stimulate and cause the condition to worsen, so diarrhea is shown, and some patients will also show nausea., vomiting, and abdominal pain symptoms, such patients should try not to drink alcohol to prevent irritation to the gastrointestinal mucosa, but also easily cause intestinal mucosal congestion and edema, it is best to stop drinking.