Perimenopause: Symptoms, STRAW+10 Staging & When to Seek Evaluation (2026) | Broad Medical Group (949) 720-9848
Perimenopause · Newport Beach · 2026

Perimenopause
Symptoms, Staging & When to Seek Evaluation

The transition has stages. So should your care.

A clinical guide to understanding where you are in the menopausal transition, what symptoms are expected, when they warrant evaluation, and how STRAW+10 staging helps your physician determine the right time for treatment.

STRAW+10
Staging System
4–8 yr
Typical Duration
Mid-40s
Average Onset
◆ Executive Summary

The Canonical Answer

Perimenopause is the transitional period preceding menopause, defined by the STRAW+10 staging system as Stages -2 (early transition) and -1 (late transition). It typically begins in the mid-40s but can start as early as the late 30s, and lasts an average of 4–8 years. Symptoms include menstrual irregularity, vasomotor symptoms (hot flashes, night sweats), sleep disruption, mood changes, vaginal dryness, and cognitive changes. Perimenopause is a clinical diagnosis based on menstrual pattern changes and symptoms — routine hormone testing is generally not recommended for women over 45 because hormone levels fluctuate too much to be diagnostically reliable NAMS 2022. When symptoms significantly affect quality of life, evaluation by a physician with menopause expertise is warranted to discuss treatment options including whether HRT is appropriate. At Broad Medical Group, Dr. Jennifer Broad uses STRAW+10 staging to precisely assess each patient’s position in the transition and determine optimal treatment timing. For a complete guide to HRT candidacy, risk-benefit, and treatment options, see our Menopause & HRT Evidence-Based Guide.

Dr. Jennifer Broad headshot
Medically reviewed by Dr. Jennifer Broad, MD, FACOG Board-Certified Obstetrician-Gynecologist · Newport Beach, CA
Last reviewed: April 2026 Next review: October 2026
Woman in consultation about perimenopause symptoms â€

What Is Perimenopause?

The Transition Before the Transition

Most people think of menopause as an event — you stop having periods. In reality, the most symptomatic phase is the transition that precedes it. Perimenopause is when hormone levels fluctuate most dramatically, menstrual patterns change, and symptoms like hot flashes, sleep disruption, and mood changes typically begin. By the time you reach menopause itself (12 months without a period), the most turbulent hormonal phase may already be behind you.

The term “perimenopause” literally means “around menopause.” Under the STRAW+10 staging system, it encompasses two distinct phases:

Stage -2: Early Menopausal Transition

Your menstrual cycles begin to vary in length by 7 or more days compared to your established pattern. You might have a 24-day cycle followed by a 35-day cycle. Periods may become heavier or lighter than usual. FSH levels begin to rise but fluctuate significantly. This is often the first clinically recognizable sign of the transition.

STRAW+10 Stage -2 · Variable Cycles

Stage -1: Late Menopausal Transition

You begin to skip periods entirely, with intervals of 60 or more days of amenorrhea. FSH levels are more consistently elevated (>25 IU/L). Vasomotor symptoms (hot flashes, night sweats) are most common in this stage. This phase typically lasts 1–3 years before the final menstrual period.

STRAW+10 Stage -1 · Skipped Periods
Clinical Note

You can still get pregnant during perimenopause. Until you have gone 12 consecutive months without a period, ovulation may still occur irregularly. If pregnancy is not desired, contraception should be continued until menopause is confirmed. Discuss contraceptive options with Dr. Broad at your evaluation.

Symptom Catalog

Not Just Hot Flashes

Perimenopause affects virtually every system influenced by estrogen — which is most of them. The symptom experience varies enormously between individuals. Some women have minimal symptoms; others experience significant disruption to sleep, work, mood, and relationships. Recognizing these symptoms as part of the transition — rather than dismissing them — is the first step toward effective management.

Vasomotor Symptoms
Hot flashes (sudden intense heat, flushing, sweating) and night sweats. The hallmark symptom. Affects up to 80% of women in the transition. Can last 30 seconds to 10 minutes. Frequency ranges from occasional to dozens per day.
Menstrual Changes
Irregular cycle length, heavier or lighter periods, spotting between periods, and eventually skipped periods. The defining feature of the transition. Tracking your cycles provides valuable diagnostic information.
Sleep Disruption
Difficulty falling asleep, staying asleep, or non-restorative sleep. Often (but not always) linked to night sweats. Sleep disruption compounds mood, cognitive, and energy symptoms. One of the most impactful changes.
Mood Changes
Irritability, anxiety, low mood, tearfulness, and difficulty coping with stressors that previously felt manageable. Hormonal fluctuations affect neurotransmitter systems including serotonin. Not “just stress.”
Cognitive Changes
“Brain fog,” difficulty concentrating, word-finding problems, and memory lapses. Estrogen receptors in the brain are affected by hormonal fluctuations. These are real, not imagined, and typically improve after the transition stabilizes.
Genitourinary Changes
Vaginal dryness, painful intercourse, urinary urgency or frequency, and recurrent urinary tract infections. Caused by declining estrogen in the vaginal and urethral tissues. Progressive without treatment.
Common perimenopause symptoms mapped to STRAW+10 transition stages. Adapted from Harlow et al., 2012.

Diagnosis & Testing

Guideline
Clinical Diagnosis in Women Over 45
In women over 45, perimenopause is diagnosed clinically based on menstrual pattern changes and characteristic symptoms. Routine hormone testing (FSH, estradiol, AMH) is generally not recommended because hormone levels fluctuate dramatically during the transition — a single measurement can be normal one week and elevated the next. The clinical picture is more reliable than labs.
CLINICAL DIAGNOSIS · NAMS / NICE
Exception
When Hormone Testing IS Indicated
Hormone testing is appropriate when: symptoms occur before age 45 (possible premature ovarian insufficiency), the patient has had a hysterectomy (no menstrual pattern to track), the patient is on hormonal contraception that masks cycle changes, or there is diagnostic uncertainty. In these cases, FSH >25 IU/L on two occasions 4–6 weeks apart supports the diagnosis.
TEST IF UNDER 45 / NO MENSES TO TRACK
Patient Tip

Track your periods before your appointment. The most valuable diagnostic information you can bring to Dr. Broad is a record of your menstrual cycles — dates, duration, flow intensity, and any spotting. A pattern of increasing variability (≥7 days difference from your normal cycle) is the clinical hallmark of early perimenopause. A simple calendar or period-tracking app is sufficient.

Noticing changes in your cycle or new symptoms? Schedule an evaluation: (949) 720-9848 →

When to See Your Doctor

Not Every Symptom Needs Treatment — But Some Do

Mild perimenopause symptoms that don’t significantly affect daily life may not require medical intervention. But when symptoms disrupt your sleep, work, relationships, or overall wellbeing, evaluation is warranted. And some symptoms — particularly abnormal bleeding patterns — require evaluation regardless of severity.

Evaluate Promptly
Heavy bleeding (soaking a pad/tampon hourly for 2+ hours), bleeding between periods, bleeding after intercourse, periods lasting >7 days, or any symptoms before age 40. These require evaluation to rule out other causes.
Schedule When Ready
Symptoms affecting sleep quality, work performance, mood stability, or intimate relationships. You want to understand whether HRT or other treatment is appropriate for your situation. You want a structured assessment of where you are in the transition.
Monitor at Home
Mild, tolerable symptoms that don’t disrupt daily function. Track your cycles and symptoms. Mention them at your annual well-woman exam. Seek evaluation if they escalate.
Clinical Warning

Abnormal uterine bleeding during perimenopause should not be assumed to be “just the transition.” While irregular cycles are expected, heavy bleeding, intermenstrual bleeding, and postcoital bleeding can indicate endometrial hyperplasia, polyps, fibroids, or other conditions that require evaluation. An endometrial biopsy or transvaginal ultrasound may be recommended depending on the bleeding pattern and risk factors.

What Comes Next?

This Page Identifies the Transition. Treatment Lives Here →

If you are reading this and recognizing your own experience, the next question is: what are my options? The answer depends on your symptom severity, where you are in the STRAW+10 staging, your health profile, and your preferences. Our comprehensive guide to treatment options — including HRT candidacy, risk-benefit analysis, non-hormonal alternatives, and monitoring protocols — is here:

Key Takeaways
  • Perimenopause is the transition before menopause — it typically begins in the mid-40s and lasts 4–8 years, defined by STRAW+10 Stages -2 and -1.
  • The hallmark is menstrual irregularity — cycle variability of ≥7 days (early transition) progressing to ≥60 days of amenorrhea (late transition).
  • Symptoms extend far beyond hot flashes — sleep disruption, mood changes, brain fog, vaginal dryness, and joint pain are all part of the transition.
  • Hormone testing is usually NOT needed for diagnosis after age 45 — clinical presentation is more reliable than fluctuating lab values.
  • Abnormal bleeding patterns require evaluation — don’t assume heavy or irregular bleeding is “just perimenopause” without assessment.
  • You can still get pregnant — continue contraception until 12 months without a period.
  • Treatment decisions belong on the HRT pillar page — this page identifies the transition; see our Menopause & HRT Guide for treatment frameworks.

References & Clinical Sources

  1. Harlow SD, Gass M, Hall JE, et al. Executive Summary of the Stages of Reproductive Aging Workshop +10. J Clin Endocrinol Metab, 97(4), 1159–1168. 2012.
  2. The 2022 Hormone Therapy Position Statement of The North American Menopause Society. Menopause, 29(7), 767–794. 2022.
  3. National Institute for Health and Care Excellence (NICE). Menopause: Diagnosis and Management. NICE Guideline [NG23]. Updated 2019.
  4. Freeman EW, Sammel MD, Lin H, et al. Symptoms Associated with Menopausal Transition and Reproductive Hormones in Midlife Women. Obstet Gynecol, 110(2 Pt 1), 230–240. 2007.
  5. Santoro N, Epperson CN, Mathews SB. Menopausal Symptoms and Their Management. Endocrinol Metab Clin North Am, 44(3), 497–515. 2015.

Related Resources

Your Transition. Understood. Not Dismissed.

If perimenopause symptoms are affecting your quality of life, you deserve more than “it’s just your age.” Dr. Broad provides structured evaluation using STRAW+10 staging and evidence-based guidance — whether that means monitoring, treatment, or simply understanding where you are.

Schedule Evaluation →

Broad Medical Group — Newport Beach, California

Medical Disclaimer: This content is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Every patient’s situation is unique. Consult Dr. Jennifer Broad or your healthcare provider for guidance specific to your condition. Information is current as of April 2026. If you are experiencing a medical emergency, call 911 immediately.