Should i panic if my stool looks like coffee grounds?

If vomit does, yes: No need to panic if stool looks likes coffee grounds, but i would wonder what you are eating to make them look this way.Worry if you get bright red blood per rectum or if you get foul smelling black stools, are these are signs of GI bleeding. If you have no pain, just call your doctor at your leisure and see if s/he can sort out the reason based on your diet.Best wishes.

If stool is: Black or maroon would have it checked medically.