Has my dog eaten a corn cob and should I be concerned about it?

Yes, if your dog has eaten a corn cob, you should be concerned. Corn cobs can cause intestinal blockages in dogs, which can be a serious health issue. It is important to monitor your dog for symptoms such as vomiting, diarrhea, lethargy, and loss of appetite. If you notice any of these signs, contact your veterinarian immediately.