In general, fire may be accompanied by varying degrees of constipation, which is accompanied by dry, hard stools that can damage the anal and rectal mucosa and cause blood in the stool. Fire may be accompanied by other gastrointestinal diseases, which may result in blood in the stool. Pay attention to go to the hospital for further consultation, improve the stool routine, gastroscopy and other tests to rule out organic diseases of the gastrointestinal tract. For example, acute and chronic enteritis caused by bacteria and amoeba virus may cause blood in the stool, and immune diseases and ulcerative colitis may cause mucopurulent blood in the stool. Other diseases such as gastric ulcer, bleeding from ruptured esophagus-fundus varices, esophageal cancer, gastric cancer, cardia lacerations, etc. may present with clinical symptoms such as vomiting blood, black stools, panic and weakness.