ACOG, FIGO, and FOGSI Guidelines for Normal Menstrual Cycles
Yes, ACOG and FIGO have established specific guidelines for evaluating normal menstrual cycles in reproductive-age women, though no FOGSI guidelines are provided in the available evidence.
ACOG Guidelines
ACOG recommends using the menstrual cycle as a vital sign in the assessment of reproductive-age women 1. This approach provides a powerful tool for assessing normal development and excluding serious pathologic conditions.
Key Parameters for Normal Menstruation:
- Cycle length ranges: ACOG emphasizes educating patients and clinicians about normal ranges for menstrual cycle length, duration of flow, and amount of bleeding 1
- Clinical assessment: Clinicians must be able to differentiate between normal and abnormal menstruation patterns and know how to evaluate patients appropriately 1
- Periodic assessments: ACOG recommends routine preventive screening and evaluation based on age and risk factors 2
FIGO Guidelines
FIGO has developed comprehensive systems specifically for normal and abnormal uterine bleeding:
FIGO AUB System 1 (Nomenclature):
FIGO established standardized terminology to describe normal and abnormal uterine bleeding symptoms, abandoning confusing terms like "menorrhagia," "metrorrhagia," and "dysfunctional uterine bleeding" 3. The 2018 revisions further refined these definitions 4.
FIGO AUB System 2 (PALM-COEIN Classification):
For abnormal bleeding evaluation, FIGO uses the PALM-COEIN system to classify causes 4, 5:
- PALM (structural causes): Polyp, Adenomyosis, Leiomyoma, Malignancy/hyperplasia
- COEIN (non-structural causes): Coagulopathy, Ovulatory dysfunction, Endometrial, Iatrogenic, Not classified
FIGO Ovulatory Disorders Classification:
FIGO developed the HyPO-P system for ovulatory disorders 6:
- Hy: Hypothalamic causes
- P: Pituitary causes
- O: Ovarian causes
- P: PCOS (separate category)
This is further stratified using GAIN-FIT-PIE (Genetic, Autoimmune, Iatrogenic, Neoplasm; Functional, Infectious/Inflammatory, Trauma/Vascular; Physiological, Idiopathic, Endocrine) 6.
Clinical Application
Both ACOG and FIGO systems are designed to harmonize definitions and facilitate research, education, and clinical care 4, 5. The FIGO systems underwent rigorous development using modified RAND Delphi techniques with international stakeholder input 4, 6.
Important Caveats:
- These systems require periodic review and revision as understanding evolves 4, 3
- While widely recognized (93% familiarity with PALM-COEIN globally), implementation gaps persist, particularly in faculty development and consistent clinical use 7
- No FOGSI-specific guidelines were identified in the provided evidence
The FIGO systems are intended to be flexible and periodically updated to reflect advances in understanding 4.