Toxocara disease, also known as roundworm disease in dogs and cats, is caused by two types of roundworms: Toxocara canis (in dogs) and Toxocara cati (in cats). Patients will be infected with roundworm larvae of dogs or cats. The disease does not have specific clinical symptoms and is more common in children than adults.

Being infected with dog roundworm during pregnancy makes many pregnant women worried, afraid of affecting the fetus. Therefore, the signs of dog roundworm infection and the effects of dog roundworm infection are issues of concern, especially for families with pets in the house.