Diagnosis of abnormal uterine bleeding based on the FIGO classification: A systematic review and expert opinions.

Aim: To present evidence- and consensus-based recommendations for the diagnosis abnormal uterine bleeding.

Methods: A literature search for the diagnosis of abnormal uterine bleeding was systematically conducted in PubMed from its inception to May 2024 to identify meta-analyses, reviews, randomized controlled trials, and clinical trials, followed by an additional systematic search using keywords. Based on this evidence, an expert panel developed background, clinical, and future research questions.

Results: Based on a systematic search and the collected evidence, we developed five background questions, three clinical questions, and one future research question, with recommendations and/or statements. Evidence and recommendations are provided for clinical questions. Additionally, we developed a flowchart for diagnosis showing the steps of the examinations to be performed.

Conclusion: The flowchart and nine recommendations/statements specify an efficient diagnostic procedure to differentiate abnormal causative diseases of uterine bleeding optimized for actual Japanese situations.