Diagnostic Significance of the FIGO PALM–COEIN Classification in the Evaluation of Abnormal Uterine Bleeding: An Integrative Critical Review

Abnormal  uterine  bleeding  (AUB)  is  a  symptom  rather  than  a  single disease, and diagnostic failure may follow when the bleeding phenotype is  mistaken for an etiological diagnosis. The International Federation of Gynecology  and Obstetrics (FIGO) PALM–COEIN system provides a common vocabulary for  structural  and  nonstructural  causes,  but  its  practical  diagno stic  value  depends  on  examination  strategy,  phenotype  documentation,  access  to  investigations,  and  competing  risks.  Objective:  To  critically  evaluate  the  role  of  PALM–COEIN  in  triage, etiological work-up, longitudinal care, and real-world evidence generation,  with particular attention to digital decision support and feasibility in Uzbekistan.