My 4 1/2 month old yorkie, Riley, has thrown up white foam in the mornings on two different occasions. He did it on Sunday and again this morning. It's not a large amount, and it doesn't contain any food, but of course I'm worried. He seems fine other than that and has been acting normally. (Eating, playing, etc.) I just wondered if anyone else had experienced this and is there anything I should be looking for? I searched the threads before posting and found some old ones that mentioned dogs doing this if they hadn't eaten, but Riley always has access to food, so I can't see that being a problem. I would love any information anybody can give me. He weighed 3 lbs. last time he went to the vet. Thanks for everyone's time.
