Mucus Quality Descriptors

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated May 7, 2026

The six standardized vocabulary terms used in the Creighton Model FertilityCare System to describe the quality of observed cervical mucus: Sticky, Tacky, and Pasty indicate less-fertile mucus types; Clear, Stretchy, and Lubricative indicate fertile-type mucus. Each descriptor corresponds to a specific physical characteristic observed on folded white tissue during vulvar observation. Stretch length in inches, color (cloudy or clear), and sensation (lubricative or not) are recorded alongside the primary descriptor. Combined, these data points produce a standardized entry in the Vaginal Discharge Recording System. The vocabulary is fixed by design. Standardized terms make observations interchangeable across practitioners and clinically interpretable at the chart level. A woman charting in one FertilityCare center uses the same vocabulary as a woman charting in another, so that both a Practitioner review and a NaPro medical consult read the same language.⁷⁹

This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.