It will take about three days for dogs to expel chicken bones after eating them. If the chicken bones are relatively large, they may not be excreted, so it is best not to give bones to dogs, especially chicken bones. Chicken bones are relatively sharp and hard, which can easily scratch the intestines and stomach and cause gastrointestinal diseases. It is best to feed large bones so that the dog cannot swallow them. You can also use a special molar stick for dogs to eat.