The best way is to take a sample of your dog's feces into your Veterinarian and have it examined. Take samples from over a two day period and mix together. Your Vet will then examine the feces under a microscope and see what types of eggs are present. That will identify what types of internal parasites are there and the proper medication to be used. Round worms are very common.
Roundworms can harm dogs ect;
beetles
Fleas can transmit tapeworms to dogs, but not roundworms, hookworms or whipworms.
A hookworm belongs to the Phylum Nematoda, which includes roundworms.
Roundworms can be found in manure, cats, dogs, and also is intestines/host.
Cut off the eye of the hook with some wire cutters and then pull the hook through.
Dogs act as an environment for many parasites such as fleas, ticks, lice, tapeworms, roundworms and bacteria.
Break and Hook
Roundworms are transmitted when dogs eat dirt or feces contaminated with roundworm eggs. Nearly all puppies are born with roundworm--most mothers have dormant larvae in their tissue. These larvae come to life at the end of the pregnancy and migrate into the lungs of the new pups.
Roundworms
Roundworms belong to the phylum Nematoda.
Roundworm infections in dogs are commonly diagnosed via a fecal exam. Roundworms produce microscopic eggs that are shed in a dog's feces and these can be identified by a veterinarian by examining a sample of fecal material. Roundworms may also be diagnosed in cases of severe infestation through the animal vomiting up the adult parasites or passing adults in feces.