Diarrhea can range from a mild, temporary condition to a potentially life threatening one. Common causes include viruses, bacteria, and parasites. Diarrhea is characterized by loose or watery stools.

Pebble poop is poop appearing as small, hard, separate lumps. It can also appear as a solid piece that looks as though it consists of pebbles. Both types are a sign of constipation. Constipation ...

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