How do I know if I am in perimenopause?

Short answer: Perimenopause is the transition before menopause when your ovaries produce less estrogen and periods become irregular. There isn’t one definitive test — diagnosis is usually based on symptoms and menstrual cycle changes. Here’s how to tell and what to do next.

Common signs of perimenopause

• Changes in periods: shorter or longer cycles, heavier or lighter bleeding, skipped periods, or more spotting.
• Vasomotor symptoms: hot flashes and night sweats.
• Sleep problems: trouble falling/staying asleep, often because of night sweats.
• Mood and cognitive changes: increased anxiety, mood swings, low mood, or trouble concentrating.
• Genitourinary symptoms: vaginal dryness, discomfort with sex, more urinary urgency or infections.
• Other changes: decreased libido, hair or skin changes, joint aches, and fatigue.

Typical timing and duration

• Most people begin perimenopause in their 40s, but it can start in the late 30s or earlier.
• Menopause is defined as 12 consecutive months without a period; median age is ~51.
• Perimenopause can last months to several years (often 2–8 years).

How it’s diagnosed

• Clinical diagnosis based on symptoms and menstrual changes.
• Blood tests (FSH, estradiol) can suggest ovarian aging, but levels fluctuate and a single test isn’t definitive.
• Your clinician will also consider pregnancy (urine pregnancy test if applicable), thyroid function (TSH), and other causes (e.g., bleeding disorders, fibroids).
• If bleeding is very irregular or heavy, your clinician may order pelvic ultrasound or refer to a gynecologist.

What you can do now

1. Track your cycles and symptoms for 2–3 months (dates, bleeding pattern, hot flashes, sleep, mood). Apps like Clue or Flo are helpful for this.
2. If you’re sexually active and not trying to conceive, take a pregnancy test for missed periods.
3. Book an appointment with your primary care clinician or a gynecologist if symptoms are bothersome or bleeding is heavy/unusual.

When to seek urgent care

• Very heavy bleeding (soaking a pad/tampon in an hour or passing large clots), fainting, chest pain, high fever, or severe pelvic pain — go to the emergency room or urgent care.

Treatment options (talk with your clinician about what’s right for you)

• Lifestyle: sleep hygiene, cooling strategies for hot flashes (fans, layered clothing), reducing caffeine/alcohol, regular exercise, weight-bearing exercise for bone health.
• Non-prescription support: vaginal lubricants (KY, Astroglide) for sex, and moisturizers like Replens for ongoing dryness.
• Prescription options: low-dose vaginal estrogen for genitourinary symptoms; systemic hormone therapy (HRT) is the most effective for hot flashes but has individual risks/benefits to discuss with your clinician. Other options for hot flashes include certain antidepressants, gabapentin, and clonidine.
• Bone health: consider bone density screening (DEXA) as recommended by your clinician.

Testing and services you might use

• Blood tests ordered by your clinician (FSH, estradiol, TSH, CBC if heavy bleeding).
• At‑home hormone test kits (LetsGetChecked, Everlywell) are available for convenience but can be misleading; use them only as a supplement and review results with a clinician.
• Telehealth/menopause-focused care: Maven Clinic and PlushCare can connect you with clinicians experienced in perimenopause and HRT counseling.
• Authoritative resources: North American Menopause Society (NAMS) and U.S. Office on Women’s Health have reliable patient information. For readable guidance, consider The Menopause Manifesto by Dr. Jen Gunter.

Next steps

• Start tracking symptoms, take a pregnancy test if relevant, and make an appointment with your primary care provider or gynecologist. Bring your symptom log. If symptoms are severe or bleeding is heavy, seek care promptly.

If you want, tell me your age, the symptoms you’ve noticed, and how your periods have changed — I can help you decide what to mention to your clinician and which tests might be appropriate.