A positive poof tube does not necessarily mean that you have bowel cancer. The pouf tube is an occult blood test that detects the presence of hemoglobin in the stool to help diagnose digestive disorders. A positive test indicates the presence of gastrointestinal bleeding, but it cannot be used to determine the presence of bowel cancer. There are many diseases that cause positive fecal occult blood, such as gastric ulcer, gastric perforation, intestinal cancer, intestinal perforation, ulcerative colitis, gastric cancer, etc. The specific disease that causes positive fecal occult blood needs further examination before diagnosis. For patients with positive fecal occult blood and symptoms such as abdominal distension and pain, gastroscopy and colonoscopy are required. Through gastroscopy and colonoscopy, the presence of unidentified masses on the mucosa of the digestive tract can be detected and biopsies can be extracted for pathological examination, so as to diagnose whether the patient is suffering from intestinal cancer.