NCC WHNP Practice Exam – Complete Women's Health Care Prep 2025

The acronym that represents non-structural causes of abnormal uterine bleeding (AUB) is COEIN. This stands for Coagulopathy, Ovulatory dysfunction, Endometrial issues, Iatrogenic causes, and Not yet classified. Each of these components addresses various pathologies and physiological factors that can lead to abnormal bleeding without any structural abnormalities in the uterus, such as fibroids or polyps.

Understanding these non-structural causes is essential for clinicians as they guide the diagnostic process and inform treatment options. For instance, coagulopathy may relate to bleeding disorders that need specific management, while ovulatory dysfunction might warrant different therapeutic approaches depending on menstrual irregularities. Recognizing that non-structural factors can significantly impact a patient's bleeding pattern helps ensure comprehensive care.

The other acronyms do not address non-structural causes. PALM specifically stands for the structural causes of AUB, including Polyps, Adenomyosis, Leiomyomas, and Malignancy. Therefore, it is associated with identifiable anatomical issues rather than functional or systemic problems. MENOR and CLAMP do not relate to the categorization of AUB causes.