Having a cat during pregnancy may have an effect on the fetus. Toxoplasma gondii, herpes simplex virus types 1 and 2, rubella virus, and cytomegalovirus have the risk of causing spontaneous abortion or fetal malformation. Women are advised to undergo a eugenic pentameter test in preparation for pregnancy, and to avoid exposure to infections related to viruses and toxoplasmosis during pregnancy. Felines are the final hosts of Toxoplasma gondii, so try not to keep them during pregnancy or have a good health check. Felines are hosts for Toxoplasma gondii. If a pregnant woman owns a cat with Toxoplasma gondii infection, the pregnant woman may become infected through contact with secretions or feces of the pet cat, or when she has close contact with the pet cat. Toxoplasma infection can be transmitted to the fetus through the placenta, thus affecting the health of the fetus. Therefore, be sure to do a good health check and hygiene of your cat. If a pregnant woman is infected with Toxoplasma gondii, it is easy to cause spontaneous abortion in the early stage of pregnancy, and Toxoplasma gondii infection in the middle and late stages of pregnancy may cause fetal developmental delay and neurological developmental abnormalities, which will seriously jeopardize the health of the fetus. From the point of view of eugenics, women who have the requirement for childbearing should avoid contact with pet cats as much as possible from the beginning of the preparation period to minimize the incidence of toxoplasmosis infection. In addition, women are advised to undergo eugenic five tests during pregnancy, including herpes simplex virus types 1 and 2, rubella virus, cytomegalovirus, and toxoplasmosis, and treatment is required if they are already infected. In conclusion, from the perspective of your own health and the health of the fetus, it is recommended that you do not keep a cat during pregnancy. If you do keep a cat, make sure the cat is not infected with Toxoplasma gondii through proper health check and hygiene.