What Does Diarrhea With Reddish-brown, Watery, Bloody Stool And Many Bacteria And Few RBCs On Fecalysis Indicate?

My mother suffered diarhea and the findings in macroscopic is color reddish brown
Consistency is watery mucoid negative, blood is positve..
Fecalysis bacteria is many.
Cellular elements red blood cells 2-5hpf
Pus cells none
Thank you for your response Doctor