The Truth About Testosterone in Women

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(And Why So Many Are Getting It Wrong)

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A place for your questions about thyroid, hormones, fertility, and changes across life.

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Approved lab referenceFrom the archive

Morning collection preferred for men. Method and age matter; confirm unexpected low values.

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Approved lab referenceFrom the archive

Mayo example age 20-24: M 5.25-20.7; F <0.13-1.08. Declines with age and is method-dependent.

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Approved lab referenceFrom the archive

Depends on total testosterone, SHBG, albumin, calculation, and assay.

From the same topic

Report teachingOct 2, 2026

Levothyroxine replaces thyroid hormone, and consistency in how it is taken can affect thyroid test results.