Do not feed
Can dogs eat corn on the cob?
Never let a dog have the cob. Corn kernels are harmless, but the cob is one of the most common causes of emergency intestinal surgery in dogs.
What to do
Call a vet, even if the dog seems fine. Obstruction is a surgical problem and outcomes are much better before the bowel is compromised.
Signs to watch for
- repeated vomiting, especially after eating or drinking
- loss of appetite
- lethargy
- abdominal pain
- straining
- no stool being passed
When: Signs typically 12 hours to several days after eating.
Why
A cob does not break down in the gut and is almost exactly the wrong size and shape — it passes the stomach and then lodges in the small intestine. It is poorly visible on plain X-rays, which delays diagnosis.
How much matters
Not dose-related. Even a short section can obstruct a medium dog.
How to prepare it
Kernels cut off the cob are fine.
Never in this form
The cob itself, whole or in pieces.
Also check for
- barbecue leftovers
- compost heaps
How confident is this
established
Well established in the veterinary literature and consistent across sources.
- Hobday MM, et al. Linear vs non-linear gastrointestinal foreign bodies in 499 dogs. J Small Anim Pract 2014;55(11):560-5.
Further reading
Check another food
Informational only, and not a substitute for veterinary advice. Individual dogs vary, and this page cannot account for your dog's age, size, health conditions or medication. If you are worried, phone a vet — that call is always the right call.