Multiple studies have pinpointed alcohol as one of the most influential risk factors in ulcerative colitis. Aside from the other dangerous effects of alcohol, it can also cause trouble for the stomach. Alcohol can irritate the stomach, increasing inflammation and leading to symptoms such as irritation and pain. Diarrhea is also frequent. Spirits, beers, and wine all have the potential to improve symptoms, so you should aim to cut down on alcohol consumption significantly. It’s important to mention that not all individuals respond the same way to alcohol, and some people may consume small amounts.