We’ve compiled evidence-based veterinary guidance on the infection risks (such as toxoplasmosis) and safety precautions that pregnant women should know when living with pets.

| Item | Toxoplasma | Roundworm/Hookworm | Dermatophytes (Ringworm) |
|---|---|---|---|
| Main animals | Cats (especially outdoor cats) | Dogs and cats | Dogs and cats |
| Transmission route | Cat feces (oocysts), contaminated soil, undercooked meat | Roundworm: feces→hand→mouth; hookworm: skin penetration by larvae in soil | Direct contact with skin or fur |
| Effect on fetus | Risk of congenital infection such as miscarriage or stillbirth | Rare | Almost none |
| Prevention difficulty | Easy (daily litter box management) | Easy (hand washing, caution with bare feet on soil) | Easy (skin care) |
Indoor cats that eat only commercial food and do no outdoor hunting or raw-meat consumption tend to have a low risk of shedding Toxoplasma oocysts.

Behaviors pregnant women must strictly avoid
The following behaviors can significantly increase the risk of infection and should be strictly avoided during pregnancy: - Cleaning the cat litter box with bare hands - Tasting raw or undercooked meat - Touching garden soil or sand with bare hands - Eating without washing hands after going out - Administering medication to a sick pet without veterinary consultation It is best to ask a family member to handle litter box cleaning. If you must do it yourself, always wear gloves and a mask, and wash your hands immediately afterward.

Consult a vet if you notice these symptoms
If you notice any of the following signs while living with your pet during pregnancy, consult both your OB-GYN and your veterinarian. - Unexplained fever, muscle pain, or swollen lymph nodes (in the pregnant person) - Circular red spots or hair loss on the skin (in the pregnant person or the pet) - Sudden, repeated diarrhea or vomiting in the pet - Parasites or blood visible in the pet’s feces - Deep wounds from scratches or bites Seeking professional evaluation is the fastest and safest approach, rather than relying on self-assessment.


A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] The Cat, Clinical Medicine and Management, 2nd Edition — Chapter on Feline Zoonoses and Pregnancy
[2] Feline Emergency and Critical Care Medicine, 2nd Edition — Reproductive and Perinatal Care
[3] CDC, Toxoplasmosis and Pregnancy Prevention Guidelines, 2023
[4] 미국수의사회(AVMA), Pets and Pregnancy Owner Guide