How do I know if I am in perimenopause?

Short answer: You’re likely in perimenopause if your periods and/or typical reproductive hormones are becoming irregular and you’re getting new symptoms such as hot flashes, night sweats, sleep or mood changes, or vaginal dryness. Perimenopause is the transitional time before menopause (menopause = 12 consecutive months without a period).

What to look for

• Period changes: cycles get shorter or longer, skip cycles, or bleeding becomes heavier or lighter. Irregular periods are the most common early sign.
• Vasomotor symptoms: hot flashes and night sweats that weren’t there before.
• Sleep problems and fatigue.
• Mood changes: anxiety, irritability, or low mood (new or worsening).
• Genitourinary symptoms: vaginal dryness, painful sex, urinary frequency/urgency.
• Other: decreased libido, breast tenderness, headaches, brain fog or difficulty concentrating.

Typical age and timing

• Most people start perimenopause in their 40s, but it can begin in the mid-30s or earlier for some.
• Duration varies — average about 4 years but can last up to 10 years for some. Menopause is diagnosed after 12 months with no periods.

How it’s evaluated

• Clinical diagnosis is usually based on symptoms and menstrual pattern.
• Blood tests (FSH, estradiol) can help but are often unreliable during perimenopause because hormone levels fluctuate. A single FSH test can be misleading.
• Your clinician will also rule out pregnancy, thyroid disease, bleeding disorders, or other causes of irregular bleeding (pregnancy test, TSH, complete blood count if heavy bleeding).
• Anti-Müllerian hormone (AMH) and serial testing can sometimes be informative about ovarian reserve, but AMH is not routinely required to diagnose perimenopause.

When to see a clinician now

• If symptoms are severe or affect daily life (sleep, mood, work, relationships).
• Heavy or prolonged bleeding, very irregular bleeding, or bleeding after sex.
• If you’re still having periods but are pregnant or could be — get a pregnancy test.
• If you have risk factors that affect treatment choices (history of breast cancer, clotting disorder, stroke, heart disease).

Treatment options (overview)

• Lifestyle: regular exercise, good sleep hygiene, weight management, avoiding triggers (alcohol, hot drinks, spicy foods) for hot flashes.
• Hormonal: systemic hormone therapy (estrogen ± progestin) is the most effective for hot flashes and night sweats and for preventing bone loss; vaginal estrogen (creams, rings, tablets) treats vaginal dryness with much lower systemic absorption.
• Non-hormonal: low-dose paroxetine (Brisdelle) is FDA-approved for menopausal hot flashes; other options include certain antidepressants (venlafaxine, sertraline), gabapentin, or clonidine.
• Contraception: if you still want pregnancy prevention during perimenopause, combined pills or progestin-only methods are options and can also stabilize cycles and control bleeding.
  All treatments should be individualized based on your medical history and risk factors.

Resources and services (trusted names)

• Mayo Clinic and Cleveland Clinic — clear, evidence-based patient information about perimenopause and treatment options.
• Planned Parenthood — local and telehealth visits for evaluation, contraception, and basic management.
• Maven Clinic and Gennev — telehealth services focused on women’s and menopause care, useful if you prefer virtual visits with specialists.
• If considering medication for hot flashes: Brisdelle (paroxetine 7.5 mg) is the only non-hormonal drug FDA-approved specifically for menopausal hot flashes — discuss with your clinician.

Next steps I recommend

1. Note your age, how your cycles have changed (length, flow), and any new symptoms (hot flashes, sleep problems, mood, vaginal dryness).
2. Make an appointment with your primary care clinician or a gynecologist (or a menopause specialist via telehealth).
3. Ask for appropriate tests if needed (pregnancy test if relevant, TSH, CBC if heavy bleeding). Don’t rely on a single FSH for diagnosis.
4. Discuss symptom management options tailored to your health history.

If you want, tell me your age, what menstrual or other symptoms you’ve noticed, and whether you’re using contraception or have any major medical history (breast cancer, blood clots, stroke, heart disease). I can help you decide what to mention to your clinician and what options might suit you.