Perimenopause
Perimenopause blood tests: what to review
FSH, estradiol, thyroid, and metabolic markers in transition.
Perimenopause is a transition pattern, not one lab value. Decode helps you connect symptom clusters with hormone, thyroid, metabolic, and micronutrient markers in a structured summary.
High-yield tests to discuss
- FSH / Estradiol: variability across cycles can explain changing symptoms.
- TSH / Free T4/T3: thyroid overlap often mimics perimenopause symptoms.
- Ferritin + CBC: persistent fatigue and hair changes may involve iron status.
- Glucose/HbA1c/Lipids: metabolic risk often shifts during this transition.
Practical interpretation principle
Single draws can miss dynamic changes. Trend tracking over time plus symptom diary and cycle context usually gives better clinical insight than one isolated panel.
Educational context only
Perimenopause is a clinical pattern, not one lab value. Decode does not diagnose menopause transition or prescribe HRT. Methodology, limits & clinician handoff.