If gastric polyps, most patients have no clinical symptoms, a few may show epigastric pain, nausea, vomiting, bleeding and other symptoms; most of the early intestinal polyps have no obvious symptoms, with the progression of the disease can be a change in bowel habits, abdominal pain, blood in the stool and other symptoms. 1. Gastric polyps: most patients do not have any clinical symptoms, a few patients may have epigastric pain, nausea, vomiting, loss of appetite, gastrointestinal bleeding (black stool) and other symptoms. 2. Intestinal polyps: most patients with intestinal polyps do not have obvious symptoms in the early stage. As the disease progresses, symptoms such as change in bowel habit (e.g. constipation and diarrhea alternately), abdominal pain (e.g. abdominal pain or intermittent colic), and bloody stools may appear. It is recommended to consult a doctor as soon as possible and follow the doctor’s instructions for treatment.