Eating should remain possible
Mild tenderness can change how a puppy approaches a hard biscuit, but refusing food, crying when chewing, dropping food repeatedly, or avoiding water warrants attention.
Check for asymmetry and swelling
One-sided facial swelling, a tooth pointing in an unusual direction, persistent bleeding, or a strong mouth odor is not a routine teething milestone.
Retained teeth matter
Sometimes a baby tooth remains while the adult tooth erupts beside it. Crowding can affect the bite and trap debris, so a veterinary dental check is useful.
What to avoid
Keep the response gentle.
Do not give human pain medicine or try to extract a tooth at home.
Safety boundary
When to get more help.
Urgent veterinary advice is needed for significant bleeding, trauma, severe pain, inability to eat, or facial swelling.