Hello...I am new to YT..I have a 4 month old yorkie male named Chopper...I have the same problem with him and I asked the vet about it and he told me it was nothing to worry about that some times they get conctepated and that the mucus is from straining to poop....he told me to give him a half teaspoon of pepto-bismol..and he hasn't had the discharge since...hope it helps |