Diarrhea in a dog is a symptom that an owner should pay careful attention to. One day (twenty-four hours) of relatively mild diarrhea not accompanied by other symptoms may well be harmless. More than a day of diarrhea or even a single day if a dog has other symptoms should be reported to a vet. A single day of frequent and severe diarrhea also requires a vet visit, as do recurring bouts of the disorder.
A change in diet, scavenging something that irritates the digestive tract, a food intolerance, stress, gastrointestinal infections or illnesses, heat exhaustion and heat stroke (which require immediate treatment), and health problems outside the digestive tract are some problems that can cause diarrhea in a dog. Your vet will be able to offer expert advice and treatment if your dog’s problem doesn’t disappear quickly.
If you do notice that your dog develops diarrhea on a hot day, it’s essential that you cool him or her down right away so that other symptoms don’t appear. Heat stroke is a very dangerous condition for a dog and is a medical emergency.