Its greenish/yellow in color but not pus. And it doesn't seem to be bothering him...no excessive licking or straining to pee. I plan on calling the vet in the am to get his advice as to wether or not to bring him in. I remember someone on here not to long ago posting about their dog having some sort of discharge/plugged issue down under....and that they said it was disgusting. I'm hoping this isn't the same thing! Naive question....can a neutered male still have secretions or is it always related to infections?