The stool is black and dry, and there is no reason to pull it out.

Black and dry stool may be caused by taking drugs, esophageal foreign bodies, peptic ulcer and other reasons.

1. Taking

drugs such as ferrous sulfate tablets and ferrous succinate tablets, the iron in the drugs cannot be fully absorbed, mixed with stool, which will lead to black and dry stool.

2. Esophageal foreign

bodies may scratch the esophageal mucosa, causing bleeding. Blood enters the intestine and mixes with stool, which may lead to black stool. Esophageal foreign bodies enter the stomach, affecting digestion, which may cause constipation. Therefore, there will be dry stool, unable to pull symptoms.

3. Peptic ulcer

Peptic ulcer patients 'stomach, duodenal mucosa may be damaged, bleeding, leading to black stool. Peptic ulcer causes digestive function to weaken, easy to make patients constipation, causing dry stool, unable to pull symptoms.