Summer cookouts, family barbecues, and fresh corn on the cob often go hand in hand. While corn itself isn't typically harmful for pets, the cob is a completely different story. Every year, veterinary hospitals treat dogs—and occasionally curious cats—for serious emergencies caused by swallowing corn cobs.

Here's what every pet owner should know to help keep their furry family members safe.

Is Corn Safe for Pets?

The good news is that plain, cooked corn kernels are generally safe for both dogs and cats in small amounts. In fact, corn is a common ingredient in many commercial pet foods because it provides carbohydrates, fiber, vitamins, and antioxidants.

However, corn on the cob should never be given to pets.

Why Is Corn on the Cob So Dangerous?

Corn cobs are tough, fibrous, and difficult to digest. If a pet swallows part—or all—of a cob, it can become lodged in the stomach or intestines, creating a potentially life-threatening intestinal blockage (also called a gastrointestinal obstruction).

Unlike many foods that can pass through the digestive system, corn cobs often remain intact and cannot be broken down by the body.

Dogs are especially at risk because many of them don't chew their food thoroughly. Some dogs will gulp down an entire cob if given the opportunity!

Although it's less common, cats can also chew on or ingest pieces of corn cobs, particularly if they're playful or curious.

Signs of an Intestinal Blockage

Symptoms may begin within hours or may take a day or two to develop. Contact your veterinarian immediately if your pet shows any of the following signs after possibly eating a corn cob:

• Repeated vomiting

• Loss of appetite

• Lethargy or weakness

• Abdominal pain or a hunched posture

• Diarrhea or constipation

• Straining to defecate

• Drooling

• Restlessness or discomfort

• Dehydration

Without prompt treatment, an intestinal blockage can cut off blood supply to the intestines, causing tissue damage, infection, and other serious complications.

What Should I Do If My Pet Eats a Corn Cob?

If you know or suspect your pet has eaten a corn cob:

Do not wait for symptoms to appear.

Instead:

• Contact your veterinarian right away.

• If it's after hours, call your nearest emergency veterinary hospital.

• Do not try to induce vomiting unless specifically instructed by a veterinarian. In some cases, this can cause additional complications.

Your veterinarian may recommend monitoring your pet, taking X-rays or an ultrasound, or performing additional diagnostics. If the cob is causing an obstruction, surgery or endoscopy may be necessary to safely remove it.

The sooner treatment begins, the better the chances of avoiding serious complications.

Prevention Is the Best Medicine

Fortunately, corn cob accidents are easy to prevent!

Here are a few simple tips:

• Keep corn cobs out of your pet's reach during meals and cookouts.

• Dispose of cobs immediately in a secure trash can with a lid.

• Remind guests not to feed table scraps to your pets.

• Watch pets carefully during picnics, barbecues, and outdoor gatherings where dropped food may be tempting.

• If you compost food scraps, make sure pets cannot access the compost pile.

Fun Fact 🌽

Did you know a dog's powerful sense of smell can detect food from impressive distances? Even a discarded corn cob in the trash can smell like an irresistible snack! That's why using a pet-proof garbage can is one of the easiest ways to prevent accidental ingestion.

The Bottom Line

While sharing a few plain corn kernels is usually fine in moderation, corn on the cob is never worth the risk. What may seem like a harmless leftover can quickly become a medical emergency requiring surgery.

If you think your dog or cat has eaten a corn cob, don't wait for symptoms to develop. Contact your veterinarian as soon as possible for guidance. Acting quickly can make all the difference.

By keeping corn cobs safely out of reach, you can help ensure your pets enjoy a happy, healthy, and safe summer!