For most people, the chance of getting a parasite from a pet cat is relatively low—especially if your cat is healthy, sees a vet regularly, and lives primarily indoors. Most cat-related parasites spread through contact with infected feces, contaminated soil, or fleas, so everyday habits (like litter box hygiene and handwashing) make a big difference.
The most talked-about is toxoplasmosis, caused by the parasite Toxoplasma gondii. People can also pick up roundworms (Toxocara), hookworms, and occasionally Giardia—usually when microscopic traces from feces get onto hands and then into the mouth. Fleas from cats don’t typically cause “parasite infections” in humans, but they can trigger itchy bites and, in rare cases, transmit certain illnesses.
Risk is higher for pregnant people, infants and young kids, and anyone with a weakened immune system. These groups should be extra careful with litter box duties and hygiene. For everyone else, infection is uncommon when basic precautions are followed.
It’s generally unlikely if your cat is healthy, you practice good litter box hygiene, and you wash your hands afterward. Risk rises when fecal exposure is frequent or cleanliness slips.
Exposure to Toxoplasma is fairly common worldwide, but many people never have symptoms. Serious illness is uncommon and is more likely in pregnancy or with weakened immunity.
Toxoplasmosis is most often contracted by accidentally ingesting contaminated material, not by normal “inhaling.” Dusty litter can be irritating, so it’s still smart to scoop gently, avoid creating dust clouds, and wash hands afterward.
