If a dog develops a poisoning reaction after eating pineapple, it needs to be induced to vomit immediately. If vomiting is successfully induced within half an hour, it is best to send it to a pet hospital for treatment immediately, otherwise it will be life-threatening. Dogs cannot eat pineapple. Eating pineapple will cause symptoms such as vomiting, diarrhea, and poor mental health. If there is no allergic reaction after eating, you can observe it at home for a day. If you find any abnormalities, seek medical attention immediately. Do not give pineapple to your dog.