Perimenopause Symptoms: What Your Body Is Trying to Tell You

Perimenopause - the transition leading to menopause - can begin as early as your mid-30s and last for years. Yet many women are caught off guard by symptoms their doctors dismiss as "just stress."

What Is Perimenopause?

Perimenopause is the gradual transition when your ovaries begin producing less estrogen. It typically starts in your 40s but can begin earlier. During this time, hormone levels fluctuate unpredictably, causing a wide range of symptoms.

Common Perimenopause Symptoms

• Irregular periods: Cycles may become shorter, longer, heavier, or lighter
• Hot flashes and night sweats: Sudden waves of heat, often at night
• Sleep disturbances: Difficulty falling or staying asleep
• Mood changes: Anxiety, irritability, depression
• Brain fog: Difficulty concentrating or remembering
• Vaginal dryness: Changes in vaginal health
• Weight gain: Especially around the midsection
• Hair and skin changes: Thinning hair, drier skin

Hormone Tests for Perimenopause

FSH (Follicle Stimulating Hormone)

Rises as ovarian function declines. Levels above 25 mIU/mL suggest perimenopause.

Estradiol

The primary estrogen. Levels fluctuate widely during perimenopause.

Progesterone

Often the first hormone to decline, causing cycle changes and sleep issues.

LH (Luteinizing Hormone)

Works with FSH to regulate ovulation. The FSH/LH ratio can indicate perimenopause.

When to Test

For the most accurate results, test on day 3 of your cycle (if still menstruating). Since hormones fluctuate, testing multiple times may be helpful.

References

• Harlow, S. D., et al. (2012). Executive summary of the Stages of Reproductive Aging Workshop + 10: addressing the unfinished agenda of staging reproductive aging. Journal of Clinical Endocrinology & Metabolism, 97(4), 1159-1168.
• Freeman, E. W., et al. (2006). Associations of hormones and menopausal status with depressed mood in women with no history of depression. Archives of General Psychiatry, 63(4), 375-382.
• Santoro, N., et al. (2015). Menopausal symptoms and their management. Endocrinology and Metabolism Clinics of North America, 44(3), 497-515.