A positive fecal occult blood ob generally refers to a positive fecal occult blood test, which indicates the presence of blood in the stool. Positive fecal occult blood test can be seen in some diseases that cause blood in the stool, such as hemorrhoids, upper gastrointestinal bleeding, acute gastritis, peptic ulcer, ulcerative colitis, colorectal cancer and so on. In addition, it can also be seen in patients taking certain drugs, such as aspirin, such drugs can damage the gastric mucosa, resulting in a positive fecal occult blood test. Patients with positive fecal occult blood test need to complete gastroscopy, enteroscopy and other examinations and combined with the presence of nausea, abdominal pain, vomiting, abdominal distension, weight loss and other symptoms of digestive disorders and other clinical manifestations to make a comprehensive judgment. Patients with positive fecal occult blood test are advised to go to the hospital and ask the doctor to make a judgment, rather than making a blind judgment on their own.