His âsix defining characteristicsâ are as follows: 1  1. âA discourse community has a broadly agreed set of common public goals.â. 2  2. âA discourse community has mechanisms of intercommunication among its members.â. 3  3. âA discourse community uses its participatory mechanisms primarily to provide information and feedback.â.
Causes of Similar Symptoms to Dark stool in children. Research the causes of these symptoms that are similar to, or related to, the symptom Dark stool in children: 1  Stomach bleeding (4 causes). 2  Rectal bleeding (324 causes). 3  Internal bleeding (22 causes). 4  Peptic uler. 5  Gastritis (39 causes).
When related to foods, blueberries, beets, or black licorice are often the cause. Stool passed after eating these foods may be dark brown, bluish, reddish, or black. Iron supplements and medications containing bismuth subsalicylate, a common ingredient in anti-diarrhea medications, can also turn the stool dark or black.