Q. My dog throws up after drinking water, what should I do?
DANA KOCH, VMD, MLAS
A. If this only happens occasionally (a few times per week or month), and your dog throws up just water, it is not usually an emergency. Consider your dog's activity before the event - physical activity, stress, elevated temperature, drinking too fast, and inhaling water can cause them to vomit water. Try elevating the bowl, giving him/her small amounts of water at once and waiting a few minutes after the activity.
Even if this has only happened once, if your dog is acting strange afterwards (low level of activity, not eating, etc.) you should visit your veterinarian immediately. Vomiting can be a sign of an obstruction, heat stroke, or a multitude of other causes.
If this happens frequently and you cannot figure out the cause, your dog should also be examined by a veterinarian. Chronic daily vomiting can be a sign of many problems, including a chronic obstruction, other gastrointestinal disease, or a systemic disease.