Recent research suggests that regular exposure to cats might be linked to a higher chance of developing schizophrenia-related symptoms. An analysis of multiple international studies indicates that people who grow up with or frequently handle cats may have a slightly increased risk of later mental-health conditions. Scientists believe the possible connection may involve Toxoplasma gondii, a parasite commonly carried by cats, which can enter the human body through contact with cat waste or contaminated surfaces and may affect the brain’s chemical pathways. Although this biological link seems plausible, researchers stress that these findings do not prove that cats directly cause schizophrenia.

Experts also highlight the limitations of the available studies—many were small, inconsistent, or unable to determine whether cat exposure actually leads to psychotic symptoms. Several large studies found no clear association at all. Because of these mixed results, researchers call for stronger, long-term studies before drawing conclusions. For cat owners, the message is simple: no need to panic, but basic hygiene—cleaning litter boxes, washing hands, and ensuring pet health—remains important. The study’s main takeaway is that mental health may be shaped by many environmental factors, and pet exposure is only one aspect worth exploring.