Hello, stool deformities are mostly related to gastrointestinal motility, generally related to eating habits, food intake, etc. Your condition is mostly abnormal gastrointestinal function. First of all, don't worry that this is cancer. Deformity is not a manifestation of colorectal cancer. You are young, cancer can be basically ruled out, don't worry. If there is no other special discomfort, you don't need to have an examination. Pay attention to the regular diet and eat more vegetables, protein. Keep a good schedule. I wish you good health. Considering the possibility of gastroenteritis or colitis, you can take chicken's gizzard-membrane powder and motilium for treatment. At the same time, you should pay attention to: 1. Eat less fried food so as not to increase the burden on the digestive tract and cause indigestion. 2. Eat less pickled food. 3. Eat less cold food and irritating food: cold and irritating food have a strong stimulating effect on the digestive tract mucosa, which is easy to cause diarrhea or digestive tract inflammation.