Examining the stool can detect diseases such as gastroenteritis, hemorrhoids, and parasitic infections. Symptoms usually include diarrhea, bleeding, and blood in the stool. 1. Gastroenteritis: Patients with gastroenteritis will have increased stool frequency and loose stools. Checking the stool routine appears to be elevated white blood cells, may be bacterial infection caused by enteritis resulting in diarrhea. 2. Hemorrhoids: hemorrhoid patients due to intestinal constipation, feces will rub through the varicose veins, defecation force vascular pressure is too high leading to venous rupture will appear blood in the stool. 3. Parasitic infections: Parasitic diseases such as tapeworms and roundworms can be diagnosed by finding typical adult parasites or eggs in the stool. 4. Peptic ulcer: The routine occult blood test in the stool of patients with peptic ulcer is mostly positive or intermittently positive, but it is not possible to clarify whether it is gastric ulcer or duodenal ulcer only with the stool examination. If the patient is not feeling well during the examination, the patient should take appropriate treatment measures under the guidance of the doctor after clarifying the cause of the disease.