Common parasites in golden retrievers:

1. Hookworms: can directly penetrate the skin and cause severe itching, anemia, diarrhea and other symptoms in dogs.

2. Roundworms: Roundworms live in the small intestine and stomach of dogs.

3. Fleas: Fleas are external parasites that feed on the blood of animals and may cause itching in dogs.

4. Ticks: Ticks will suck a large amount of the dog's blood. If there are too many ticks on the dog, it may cause anemia symptoms.

5. Heartworm: It is caused by large roundworms. This parasite mainly exists in the blood vessels of the lungs and the heart.

6. Ear mites: Ear mites are tiny parasites in the ear canal.