This appears to be a healthy stool. It's a Bristol Type 3, meaning it's sausage-shaped but has some cracks on the surface. The color is a normal brown. Increasing fiber intake might help achieve a smoother consistency.

This appears to be severe diarrhea. It's a type 7 on the Bristol scale, very liquid and fragmented. The color is very dark brown, and the health score is 30, indicating a need for caution. Increasing fluid intake and adjusting fiber intake is recommended.