If your dog eats cold food or expired and spoiled food, it will cause diarrhea. It is recommended to stop feeding this type of food and feed an appropriate amount of probiotics to regulate the gastrointestinal environment. The dog's immunity is low, causing the dog to catch a cold, reducing the gastrointestinal barrier function, and also causing the dog to have diarrhea.

Dogs infected with internal parasites such as roundworms and coccidia can damage the gastrointestinal mucosa and cause diarrhea. It is recommended to deworm the dog immediately. Dogs infected with coronavirus, parvovirus, canine distemper virus, etc. will also experience diarrhea, accompanied by symptoms such as depression and abnormal body temperature. It is recommended to consult a doctor immediately for medication.