Some patients with tubular adenomas of the transverse colon may experience changes in bowel habits, such as diarrhea, more frequent bowel movements, and bloody or pus-filled stools. Some others have symptoms such as weakness, bloating, and anemia. As the disease progresses, it is usually accompanied by abdominal pain, and the symptoms may worsen after eating. If the tumor grows gradually, it may show signs of intestinal obstruction, i.e., nausea, vomiting, and cessation of anal evacuation and defecation. Transverse colon tubular adenoma is a benign tumor occurring in the intestinal mucosa. It mainly manifests as an abdominal mass, which has a smooth surface, clear borders, good mobility and may be mildly tender. Early diagnosis can be confirmed by fiberoptic colonoscopy. Once the diagnosis of transverse colon tubular adenoma is confirmed, it is recommended that the tumor should be surgically removed at an early stage because the chance of malignant transformation of transverse colon tubular adenoma is relatively high. If the tumor is located in the submucosa and the lesion is small, local resection via colonoscopy can be chosen. For larger tumors, it is recommended to choose laparoscopic or open surgery to remove the diseased part of the bowel, and according to the results of postoperative pathological examination, to clarify the nature of the tumor, and decide whether further surgery and chemotherapy are needed.