You may notice the adult roundworms in your dog's feces or vomit. They will appear white or light brown in color and may be several inches long.
What do worms look like for puppies?
Whipworms look like tiny pieces of thread that are enlarged on one end. Roundworms look like spaghetti and may be several inches long. Tapeworms aren't usually seen in dog poop, but their egg sacs, which look like grains of rice, can be found in dog poop or sticking to a dog's behind.
What color are dog worms?
The adult roundworm is round, white to light brown in color, and several inches long. These worms look a lot like spaghetti or angel hair pasta. Adult dogs get roundworms from ingesting roundworm larvae, usually from contaminated soil or infected prey (such as a mouse or other small mammal).
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