The AP World History course focuses on developing studentsâ. understanding of the world history from approximately 8000 BCE to the. present. This college-level course has students investigate the content. of world history for significant events, individuals, developments,
âAlterations in stool consistency and a resultant âchange in bowel habitsâ are known symptoms of a number of disease processes such as inflammatory bowel disease, cancer, and irritable bowel syndrome.â. And the possible causes of narrow or thin stools doesnât stop there.
Black pepper-sized specks in stool may be due to clumps of bacteria, commonly appearing in small intestinal bacterial overgrowth (SIBO). Black diarrhea may be due to: 1  Medications/supplements: anti-diarrheal drug Pepto-Bismol, iron pills.  Bleeding from the stomach or upper small intestine during diarrhea.