Vaginal Discharge Recording System (VDRS)

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated May 14, 2026

The Vaginal Discharge Recording System (VDRS) is the structured observation-and-coding framework used in the Creighton Model FertilityCare System to convert each day's cervical mucus observation into a standardized chart entry that any trained clinician can read and interpret consistently.¹ Each observation combines a mucus type descriptor, stretch measurement, color category, and sensation qualifier into a coded record.²

The design purpose of the VDRS is interoperability. A chart produced by a woman using CrMS in one location carries the same vocabulary as a chart produced by another woman elsewhere. A FertilityCare Practitioner reviewing the chart can identify the Peak Symptom, assess mucus quality patterns, and flag observations consistent with hormonal irregularity without re-interviewing the patient. Standardization is what makes the chart clinically readable at a glance.

The VDRS transforms daily observations into the raw material for higher-order analysis. The Mucus Cycle Score is computed from VDRS-coded entries. Cycle-timed hormonal evaluations and surgical scheduling in NaProTechnology practice depend on accurate VDRS records to align interventions with specific phases of the cycle. A chart that uses inconsistent or imprecise coding is one that a clinician cannot interpret reliably.³

Accurate VDRS records also support fertility charting as a longitudinal health tool rather than a single-cycle snapshot. Patterns across multiple cycles, including changes in mucus quality over time, carry diagnostic information that is only visible when each cycle uses the same coding standard.

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.