Yellow stool is not necessarily a symptom of cancer. Yellow stool may be caused by the yellow pigment in the food recently eaten, or by digestive problems caused by the body’s recent fire. It is also possible that the inflammation in the gastrointestinal tract of the body has reduced peristaltic ability. If the food reaches the intestine and stomach without sufficient peristaltic movement of the intestine, yellow stools may occur. The clinical manifestations of cancer are usually nausea, vomiting, diarrhea, weakness, anemia, fever, palpitations, and chest and abdominal fluid. Usually there is obvious feeling of fullness but weight loss after eating. The stools of cancer patients are mostly black stools, bloody stools, pus stools, mucus stools, etc. Therefore, yellow stools may not necessarily be cancer. You can take dietary adjustment to eat a light diet that is easy to digest, and if you are too worried, you can find out the cause through colonoscopy.