Pit bulls are more likely than other dog breeds to suddenly attack their owners.

Is it true that Pit bulls are more likely than other dog breeds to suddenly attack their owners?

Partly. One review notes pit bulls were reported as showing more pronounced aggression than friendly breeds, while another study found shelter pit bulls no more aggressive; an Italian registry links bull-type breeds to most fatal attacks, but a fatal Maremma sheepdog case shows other breeds also attack owners. The evidence covers breed involvement in serious attacks only partially and does not establish that pit bulls are more likely to suddenly attack owners.

Verdict: CONTESTED PARTIAL · 2 sources for, 1 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

The Relation between Plasma Nesfatin-1 Levels and Aggressive Behavior in Pit Bull Dogs - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3390/ani14040632

MA, S., FM, G., E, V., L, L., S, G., W, M., P, R., G, C., & I, A. (2024). A Multidisciplinary Approach to a Complex Fatal Attack Due to a Pack of Maremma Sheepdogs: Is It Always an Accident?. doi.org. https://doi.org/10.7759/cureus.56911

F, I., F, S., S, P., M, F., A, R., A, C., M, B., M, S., A, P., & C, P. (2025). Fatal Dog Attacks in Italy (2009-2025): The Urgent Need for a National Risk Registry.. doi.org. https://doi.org/10.3390/ani15243523