The stool corresponds to type 3 on the Bristol stool scale and is a very dark brown color. Overall health appears to be good. Increase your fiber intake and drink plenty of fluids.

The stool appears to be mostly mushy in consistency, with some parts being a very dark brown color. This corresponds to a Bristol type 6. It's advisable to increase your water intake and consume a diet rich in fiber. If there is no consistent improvement, consult with a professional.