What is the reason why stool does not form black

1, diet factors: patients eat too much iron rich, cold and cold food, may stimulate the gastrointestinal tract to speed up its peristaltic speed, resulting in stool does not form, black stools and other symptoms.

2, dyspepsia: if the patient gastrointestinal tract function weakened, slow peristaltic speed, such as dyspepsia, food accumulation in the gastrointestinal tract for a long time easy to become black due to oxidation, fermentation, etc., while dyspepsia causes gastrointestinal dysfunction caused by stool does not form the problem.

3, gastroenteritis: patients do not pay attention to diet hygiene so that gastrointestinal infection pathogens appear inflammation, easy to cause stool does not form, black stool and other conditions.