Perimenopause Test: Is It Perimenopause or Something Else?

Last updated October 3, 2026. Educational self-check only, not medical advice: see our Medical Disclaimer.

Irregular periods, hot flashes, fatigue and mood changes can point to perimenopause, menopause, PCOS, or something else entirely — the symptoms genuinely overlap. Answer the six quick questions in this free perimenopause test to get a starting point for what to read next and what to bring up with your doctor.

Question 1 of 6

What’s your age range?

Free tool: track your symptoms day by day and print a 30-day summary for your doctor with our free perimenopause symptom tracker.

Is There a Blood Test for Perimenopause?

Often, no lab test is needed. The UK’s NICE guideline says perimenopause can be identified without laboratory tests in otherwise healthy people aged 45 or over who have recently started having hot flashes or night sweats along with a change in their periods. It suggests considering an FSH blood test only for people aged 40 to 45 with symptoms including a cycle change, or for people under 40 in whom menopause is suspected (NICE guideline NG23).

ACOG’s approach, as described by ob-gyn Dr. Esther Eisenberg, starts by ruling out other causes of abnormal bleeding with pelvic exams, blood tests and ultrasounds. If nothing is wrong, perimenopause is the likely explanation for irregular periods, especially for women in their 40s (ACOG).

That’s why this self-check isn’t a diagnosis. It helps you organize your symptoms before you talk to a clinician, who can decide whether any testing makes sense for you. For more on what changing periods can mean, see our guide to irregular periods in perimenopause.