What happens if a dog eats eggshell?

If a dog accidentally eats a little eggshell, usually no big deal; fragments pass with the stool after digestion. But eating a lot may scratch the gastrointestinal tract, cause bleeding, or even gastroenteritis.

So after eating eggshell, watch the dog’s excretion and appetite for days; if bloody stool, low appetite, or lethargy appears, take it to the vet.