The cost of a stool test is 30 RMB. The stool test can check for red blood cells, white blood cells, and various bacterial pathogens in the stool, and can especially diagnose diseases of the intestinal tract, such as ulcers, hemorrhoids, and anal fissures. In addition, for diseases of the liver and gallbladder, such as obstructive jaundice, the color of the stool will appear clay-colored. Also, when testing the stool, it is important to pay attention, especially in children with diarrhea, to pick out the purulent part of the stool for examination. In addition, during the health checkup, try not to eat animal blood products for a few days before the stool test to avoid false positive occult blood tests.