Stool test, also known as fecal analysis, is a medical diagnostic procedure done to examine the stool for the presence of various abnormal substances like blood, bacteria, viruses, parasites, and other indicators of gastrointestinal problems. There are many synonyms for stool test, including stool culture, fecal occult blood test, fecal immunochemical test, fecal elastase test, and fecal fat test. These tests are useful in identifying the cause of digestive issues like diarrhea, constipation, abdominal pain, and other signs of gastrointestinal disorders. A stool test is often recommended by healthcare providers to assess the possible causes of gastrointestinal symptoms and help in the proper diagnosis and treatment of underlying conditions.