The absence of red blood cells, pus cells and mucus in normal stools is normal. The absence of red blood cells proves that there is no bleeding in the gastrointestinal tract, the absence of pus cells shows that there is no infection in the gastrointestinal tract, and the absence of mucus shows that the digestive function of the intestinal tract is not disturbed to the extent that mucus is excreted in the stool. However, other diseases such as gastrointestinal digestive disorders cannot be ruled out. If there are digestive disorders and other diseases, the results of the examination can also be that there are no red blood cells, no pus cells and no mucus in the stool. However, if this is the case, it needs to be diagnosed together with other symptoms and auxiliary tests. If the test result shows no red blood cells, no pus cells and mucus in the stool, it is generally normal. If the patient has other symptoms such as abdominal pain and change of stool pattern, then he needs to consult a doctor to improve other related examinations and consult a doctor’s advice.