Six Yin · Six Yang Cycle Pattern Assessment — Evidence-aware v2
TCM Fertility · Evidence-aware public self-check

Six Yin · Six Yang Cycle Pattern Assessment

A safety-first, phase-based self-observation tool inspired by Professor Xia Guicheng’s menstrual-cycle framework. Version 2 separates medical follow-up, evidence coverage, and traditional pattern tendencies to reduce false certainty.

Safety triage first Evidence weighted Unknown-first inputs Local by default
Scope

This is a structured pattern-assessment and conversation aid—not a medical diagnosis, fertility test, herbal prescription, or replacement for examination and investigations.

Privacy

Answers and calculations stay in this browser. Draft saving is off until you explicitly enable “Remember on this device.”

Cycle assessment

Five short steps: safety and context, cycle and bleeding, follicular and ovulatory phase, luteal phase, then review. Blank answers remain unknown and lower evidence coverage.

Step 1 of 5 · Safety & contextCore fields 0% complete
Step 1

Safety & cycle context

Medical urgency and whether a rhythm-based interpretation is appropriate come before any traditional pattern output.

Current context

These items determine applicability and do not themselves diagnose a condition.

Hormones, pregnancy, postpartum changes, and stimulation reduce rhythm interpretability.
Examples: very irregular cycles, endometriosis, tubal/uterine disease, prior chemotherapy, or known partner factor.
Current warning symptoms

Answer for symptoms happening now. This section only provides care-navigation prompts; it cannot determine the cause.

No safety determination yetComplete the required context and warning-symptom questions.
Required fields are marked *

Educational use only. The traditional axis model is presented as a pattern-language framework and has not been established as a validated medical diagnostic instrument.

Evidence-aware design notes and clinical reference basis

The app uses current mainstream care-navigation principles for abnormal bleeding, possible ectopic pregnancy symptoms, recurrent pregnancy loss, and when fertility evaluation is commonly considered. BBT is down-weighted because it is often unreliable for confirming ovulation; appropriately timed progesterone and clinician/ultrasound context receive more weight.

Reference basis: American Society for Reproductive Medicine fertility evaluation committee opinion; American College of Obstetricians and Gynecologists patient guidance on abnormal uterine bleeding, ectopic pregnancy, and repeated miscarriage; NICE fertility guidance. These references inform safety and test-context wording—not validation of the Six Yin · Six Yang model.