Gastrointestinal polyps can occur in your 20s. Normally, gastrointestinal polyps can also occur in your 20s, but the chances of them occurring are relatively lower. The occurrence of gastrointestinal polyps in the 20s may be due to long-term chronic inflammatory stimulation, poor dietary habits, genetic family history and other reasons. 1. Long-term chronic inflammatory stimulation: for people in their 20s, gastritis, gastric ulcer, constipation, ulcerative colitis, Crohn’s disease and other gastrointestinal diseases may cause mucosal damage, which in turn increases the chances of gastrointestinal polyps. 2. Bad diet: some young people often eat some high-fat, high-protein, low-fiber food, and long-term alcohol consumption, may also increase the chances of gastrointestinal polyps. 3. Genetic family history: gastrointestinal polyps have the possibility of genetic family history, if there are gastrointestinal polyps in the immediate family, the chances of children suffering from gastrointestinal polyps will also increase. Gastrointestinal polyps, it is recommended to go to the hospital in a timely manner, early formal treatment.