This protozoan causes dysentery and is notoriously difficult to detect in archaeological samples because, unlike worms, it ...

Joy Emeh is a professional health writer, editor, content strategist, and career development coach with up to four years of experience in the health writing space. She is interested in all things ...

Qin Rao, MD, is a board-certified physician based in New York City. He currently works as a gastroenterologist and hepatologist at Manhattan Gastroenterology. Grey poop can be caused by liver issues ...