The saturation point, sometimes called thematic saturation or data saturation, marks the moment in a qualitative research study when new participant responses consistently echo patterns already identified in the dataset. At this stage, continued data collection yields diminishing returns because no new codes, themes, or conceptual categories are emerging. Reaching saturation is a core quality criterion in qualitative research methodology, giving researchers and stakeholders confidence that findings reflect genuine patterns rather than incomplete sampling. The saturation point varies by research design, participant diversity, and topic complexity, which is why experienced researchers monitor theme emergence actively throughout fieldwork rather than relying on a fixed sample size.