Pregnant women should not clean litter boxes because of the risk of toxoplasmosis, a parasitic infection that can harm a developing fetus
Cat feces can carry Toxoplasma gondii, a parasite that causes toxoplasmosis. Most people who catch it have no symptoms, but the infection poses real risks during pregnancy. If you are pregnant, the parasite can cross the placenta and reach your baby, potentially causing miscarriage, stillbirth, or serious complications after birth including eye damage, brain damage, and seizures.
The risk is not theoretical—toxoplasmosis is one of the few infections doctors specifically screen for during pregnancy. If you are pregnant and have a cat, your doctor will likely test you early in pregnancy to see if you have already been exposed. If you have not been exposed, avoiding the litter box during pregnancy is the main way to stay protected.
The parasite lives in cat feces, particularly in the first one to two weeks after a cat becomes infected. Cats usually catch it by eating infected prey or raw meat. Indoor cats are at lower risk than outdoor cats, but any cat can carry the parasite.
Key Takeaways
- Toxoplasma gondii, a parasite in cat feces, can cross the placenta during pregnancy and cause miscarriage, stillbirth, or serious birth defects.
- Your doctor will test you for toxoplasmosis early in pregnancy to determine your immunity status and risk level.
- If you are pregnant and have not been exposed to toxoplasmosis before, someone else should clean the litter box daily, or you can wear disposable gloves and a mask and wash your hands thoroughly afterward.
- Outdoor cats and cats that eat raw meat or hunt are at higher risk of carrying the parasite than indoor cats fed commercial food.
- Toxoplasmosis is also spread through undercooked meat and unwashed vegetables, so food safety matters as much as avoiding the litter box.
How the infection spreads from litter to pregnancy
Toxoplasma gondii requires cats to complete its life cycle. When a cat eats infected prey or raw meat, the parasite reproduces in the cat's intestines and is shed in feces. The parasite becomes infectious within one to five days and can survive in the litter box for weeks or months, especially in moist conditions.
You catch it by inhaling dust from dried feces or by touching your mouth, nose, or eyes after handling contaminated litter or soil. Pregnant women are not at higher risk of infection than anyone else—the danger is what happens if infection occurs during pregnancy. The parasite can cross the placenta and infect the fetus, with the highest risk of serious complications occurring in the first trimester.
If you were infected with toxoplasmosis before you became pregnant, you have lifelong immunity and cannot pass a new infection to your baby. This is why your doctor tests you early: if you are already immune, you can clean the litter box without worry.
What your doctor will tell you about your immunity status
Your prenatal blood test checks for antibodies to Toxoplasma gondii. The results fall into three categories: immune (you have been exposed and cannot be infected again), not immune (you have never been exposed and are at risk), or inconclusive (the test needs to be repeated).
If you are immune, you do not need to avoid the litter box. If you are not immune, your doctor will recommend precautions during pregnancy. Some doctors recommend retesting in the second and third trimesters if you remain not immune, because a new infection during pregnancy would be detected and could be treated with antibiotics to reduce the risk to your baby.
If you are not immune and become infected during pregnancy, your doctor can prescribe spiramycin or other medications to reduce the chance the parasite reaches your fetus. This is another reason to tell your doctor when ready if you think you may have been exposed—early treatment makes a real difference.
Who should clean the litter box instead
If you are pregnant and not immune to toxoplasmosis, ask your partner, a family member, or a friend to clean the litter box daily. Daily cleaning is important because the parasite does not become infectious until one to five days after it is shed, so removing feces before that window closes reduces risk significantly.
If no one else is available, you can clean the litter box yourself while wearing disposable gloves and a mask, then wash your hands thoroughly with soap and warm water. Do not touch your face while cleaning. Some pregnant women also choose to wear a mask to avoid inhaling dust. Dispose of the gloves in a sealed bag.
Wear fresh gloves each time you handle the litter box. Reusing gloves defeats the purpose. If you have open cuts or sores on your hands, wear gloves even if someone else is available to clean, because the parasite can enter through broken skin.
Other sources of toxoplasmosis during pregnancy
The litter box is not the only way to catch toxoplasmosis. Undercooked or raw meat, especially pork, lamb, and venison, carries the parasite. Unwashed vegetables and fruits can also be contaminated if they were grown in soil with cat feces.
During pregnancy, cook all meat to a safe internal temperature: 160°F for ground meat, 145°F for whole cuts, and 165°F for poultry. Wash all raw vegetables and fruits under running water before eating. Wash your hands, cutting boards, and utensils after handling raw meat. These precautions protect you whether or not you have a cat.
If you garden, wear gloves and wash your hands afterward, because outdoor soil may contain the parasite from cat feces. Avoid changing soil in potted plants if possible, or wear gloves if you do.
Risk level depends on your cat's lifestyle
Indoor cats that eat only commercial cat food have a very low risk of carrying toxoplasmosis. Outdoor cats and cats that hunt or eat raw meat have a much higher risk. If your cat goes outside or eats prey, the risk of infection in the litter box is real. If your cat stays indoors and eats only commercial food, the risk is minimal but not zero.
You cannot tell by looking at a cat whether it is infected. A cat with toxoplasmosis usually shows no symptoms. Some cats have mild fever, lethargy, or loss of appetite for a few days, but most infected cats appear completely healthy.
If you are not immune and your cat's status is unknown, the safest approach is to have someone else clean the litter box for the duration of your pregnancy. This is a temporary precaution, not a permanent change.
What happens if you are exposed during pregnancy
If you think you may have been exposed to toxoplasmosis during pregnancy—for example, if you cleaned the litter box without protection or ate undercooked meat—tell your doctor right away. Your doctor can test you to see if you have been infected. If you have, treatment with antibiotics can reduce the risk of the parasite reaching your baby.
The outcome depends on when in pregnancy the infection occurred. Infection in the first trimester carries the highest risk of serious complications but a lower chance the parasite will cross the placenta. Infection in the third trimester carries a lower risk of serious complications but a higher chance the parasite will reach the baby. Your doctor will discuss your specific situation and options with you.
After your baby is born, your doctor will test your newborn for toxoplasmosis if you were infected during pregnancy. Newborns with congenital toxoplasmosis can be treated with antibiotics to prevent or reduce complications.
Frequently Asked Questions
Can I pet my cat if I am pregnant and not immune?
Yes. Petting your cat does not transmit toxoplasmosis. The parasite is only in feces. Wash your hands after petting your cat as you normally would, and avoid touching your face until you have washed. The main risk is the litter box, not the cat itself.
What if my cat is an indoor cat and I am not immune—do I still need to avoid the litter box?
Indoor cats have a much lower risk of carrying the parasite, but the risk is not zero. If you are not immune, the safest approach is to have someone else clean the litter box. If that is not possible, wear gloves and a mask and wash your hands thoroughly. Your doctor can discuss your specific situation.
If I was exposed to toxoplasmosis before I got pregnant, do I need to worry during pregnancy?
No. If you have antibodies to toxoplasmosis, you have lifelong immunity and cannot be infected again. Your baby is protected. You can clean the litter box without precautions.
How long do I need to avoid the litter box?
You should avoid cleaning the litter box for the entire pregnancy if you are not immune. After your baby is born, there is no risk to your child from toxoplasmosis in the litter box, so you can resume cleaning as normal.
Can my cat give me toxoplasmosis through scratches or bites?
No. Toxoplasmosis is not transmitted through scratches, bites, saliva, or blood. The parasite is only in feces. Wash any scratch or bite wound as you would normally, but the risk of toxoplasmosis from the wound itself is zero.