Review of microorganisms and breast cancer evidence remains uncertain

This narrative review looks at how microorganisms might connect to breast cancer. The goal is to understand if these tiny living things play a role in the disease. However, the picture is not clear yet. The majority of the available evidence originates from cross-sectional studies and in vitro or in vivo models. These are snapshots in time or experiments in a lab dish, not long-term observations of people. Because of this, we cannot say for sure if these microorganisms cause the cancer or simply live alongside it. The review does not report on safety issues or side effects because the data is not strong enough to support those conclusions. We must be careful not to overstate what we know. The current information is incomplete and uncertain. Until more robust data becomes available, the link between these organisms and breast cancer remains a question rather than a fact.