Causes of dog diarrhea:

1. It may be gastroenteritis.

2. It may also be caused by eating human food. The food eaten by humans is too oily and too salty, so dogs are prohibited from eating it.

3. Dogs are very greedy and accidentally swallowed spoiled food or plastic bags without the care of their owners. In this case, it will inevitably cause diarrhea.

4. Eating too much food or food that is difficult to digest may cause diarrhea.

5. When you come to a strange environment, you will have a stress reaction and have diarrhea due to uneasiness and fear.

6. Catch a cold. Generally speaking, if the dog's energy and appetite are no different from usual, it can be considered to be caused by a sudden change in weather or catching a cold.