Heartworms, hookworms, and tapeworms are all common internal parasites that can infect dogs and cats.

The life cycle of a tapeworm typically involves an egg stage, a larval stage, and an adult stage.

Fleas, ticks, and mites are all common external parasites that can infest dogs and cats.

Heartworm disease is primarily transmitted through the bite of an infected mosquito.

Diarrhea, vomiting, and weight loss are all common symptoms of hookworm infection in dogs and cats.

Regular use of heartworm prevention medication and annual heartworm testing are both recommended for preventing heartworm disease in dogs.

Segments of tapeworms in the feces, weight loss, and vomiting are all common symptoms of tapeworm infection in dogs and cats.

Administration of anthelmintic medication and supportive care are both recommended for treating hookworm infection in dogs and cats.

Itching, skin irritation, and hair loss are all common symptoms of flea infestation in dogs and cats.

Regular use of flea prevention medication and frequent bathing are both recommended for preventing flea infestation in dogs and cats.

Swelling and redness at the site of the bite, fever, and lethargy are all common symptoms of tick infestation in dogs and cats.

Regular use of tick prevention medication and avoidance of areas where ticks are known to be present are both recommended for preventing tick infestation in dogs and cats.

Intense itching, skin irritation, and hair loss are all common symptoms of mite infestation in dogs and cats.

Regular use of mite prevention medication and frequent bathing are both recommended for preventing mite infestation in dogs and cats.

Diarrhea, vomiting, and weight loss are all common symptoms of protozoal infection in dogs and cats.