A scoping review is a type of knowledge synthesis designed to map the existing literature on a particular topic or research area. It provides an overview of the breadth, range, and nature of research evidence available, especially in new, complex, or emerging fields where information is dispersed or not yet systematically reviewed.

Mostly, some researchers confuse scoping reviews with systematic reviews.

A scoping review differs from a systematic review primarily in its purpose and scope: it addresses a broad research question to map the extent, range, and nature of evidence on a topic, often to identify gaps and inform future research directions, whereas a systematic review focuses on a narrowly defined question aiming to identify, appraise, and synthesize all high-quality empirical evidence to provide precise answers. Scoping reviews typically use more flexible inclusion criteria, may not perform formal quality assessments, and usually provide a descriptive or thematic synthesis, while systematic reviews require rigorous appraisal and often include quantitative synthesis such as meta-analysis. Consequently, scoping reviews are exploratory and suitable for emerging or complex fields, while systematic reviews are confirmatory, providing detailed and evidence-based conclusions.