Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Healthy Dogs

Font Size

Roundworms in Dogs


Roundworms spread easily. One roundworm can produce up to 85,000 eggs a day. But you can do a lot of things to ward them off.

  • Deworm your puppy when he’s young. The best time to start is before he’s 3 weeks old.
  • If your dog is a female, treat her before she breeds and again during pregnancy.
  • Keep things clean, including the areas where he eats, sleeps, and plays. Throw away his poop properly. Clean up after him in your yard and also in the park. Don’t let your dog use a playground or sandbox as a litterbox.
  • Keep your dog away from small, wild animals. They can carry roundworms. Consider keeping him on a leash or in a fenced yard.
  • Give your dog drugs to prevent heartworms. Many have ingredients that also prevent roundworms.
  • Talk to your doctor about possibly deworming your dog every so often if he’s at high risk of an infection.

Risk to Humans

It’s rare, but roundworms can cause problems in people. If you have contact with dog poop or soil that’s contaminated, you may get an infection. That can lead to eye, lung, heart, and neurological problems.

Kids have a higher risk and may get infected by ingesting eggs that are in soil or dog poop. Keep them away from areas where dogs have used the bathroom. Be sure they wash their hands regularly.

WebMD Medical Reference

Reviewed by Amy Flowers, DVM on October 5/, 014
1 | 2

Today on WebMD

bulldog in party hat
Breeds with longevity
Doberman Pinscher Clipped Ears
The facts about ear cropping and tail docking.
dog with duck in mouth
Which are considered smartest?
boxer dog
What are their health issues?
Pit bull looking up
Pets: Is My Dog Normal
Dog scratching behind ear
dog catching frisbee
Dog Breed RMQ
Lady owner feeding dog
bulldog in party hat

Special Sections