Sympto-Hormonal Method

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

The sympto-hormonal method is a fertility awareness-based method (FABM) that combines physical fertility signs, specifically cervical mucus observation and basal body temperature, with objective urinary hormone testing to identify the fertile window and confirm ovulation.¹ The urinary tests typically measure LH (luteinizing hormone) and estrone-3-glucuronide (E1G), a urinary estrogen metabolite. Together, these markers provide both a hormonal lead signal before ovulation and a biochemical confirmation after it.

The Marquette Method is the most studied sympto-hormonal approach, using the Clearblue Fertility Monitor to generate daily LH and E1G readings that are charted alongside physical observations.² This distinguishes the sympto-hormonal method from mucus-only methods like Billings and the Creighton Model, and from the purely temperature-and-mucus sympto-thermal method. The addition of hormonal data provides a second independent channel of ovulation confirmation, which is particularly useful when mucus patterns are unclear or atypical.

In reproductive medicine, the sympto-hormonal method is relevant to clinicians who use fertility awareness-based methods for diagnostic monitoring as well as family planning. When women with irregular cycles or suspected hormonal dysfunction record both mucus patterns and urinary hormone data, the combined chart provides richer information than either source alone. The hormonal dimension can surface blunted LH surges, prolonged E1G rises, or absent peaks that physical observation alone may miss.³

Chart data from the sympto-hormonal method is compatible with basal body temperature review and is accepted by clinicians trained in multiple FABM frameworks. This makes it a flexible option for couples seeking both family planning effectiveness and cycle health monitoring in a single integrated system.

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.