Ham bones, along with other cooked animal bones, are brittle and can splinter into sharp shards when chewed on by dogs. These shards can cause severe damage to your dog's mouth, throat, esophagus, and intestines, and can even lead to death in some cases. In addition, the small pieces of bone that are ingested can cause vomiting, diarrhea, and constipation. Additionally, the high salt content in ham bones can lead to health problems such as dehydration, electrolyte imbalances, and kidney damage.
Veterinarians strongly recommend that you do not give your dog any type of cooked bone. If you want to give your dog a bone to chew on, choose raw, marrow-filled bones from the butcher or pet store that are specifically made for dogs.