Dismiss Modal

Definition

Hormone Changes During Menopause

Choose a preferred language

Menopause is not a sudden change. During the months or years before menopause (perimenopause), your ovaries start to run out of eggs. Your body makes less estrogen and progesterone. This may bring on symptoms, such as hot flashes. You’ve reached menopause when you have not had a period for 1 year. From that point on, you are in menopause.


Perimenopause

In the years leading up to menopause, your ovaries make less estrogen. You release fewer eggs and your periods become less regular.

Symptoms you may have

  • Heavier or lighter periods

  • Longer or shorter time between periods

  • Hot flashes

  • Mood swings or depression

  • Night sweats

  • Insomnia

  • Vaginal dryness, which may make having sex uncomfortable or painful

  • Urinary changes, such as incontinence or urinating more often

  • Migraine headaches

  • Joint pain


Postmenopause

After menopause, you make very little estrogen. As a result, the uterine lining doesn't get thicker, and your periods have ended.

Symptoms you may have

  • No periods

  • Vaginal dryness, which may make having sex uncomfortable or painful

  • Hot flashes

  • Mood swings or depression

  • Night sweats

  • Insomnia

  • Urinary changes, such as incontinence and urinating more often

  • Joint pain

  • Memory loss or trouble concentrating


Surgical menopause

Menopause occurs if you have your uterus removed. But symptoms of menopause happen only if the ovaries are also removed. This causes a quick drop in the amount of estrogen and progesterone. This drop causes sudden and severe symptoms.

Featured in

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Find the right providers for your needs.

CalOptima Health works with thousands of Orange County providers, including doctors, specialists, health networks, medical groups and more.

Find a Doctor

See Member Health Rewards

CalOptima Health offers health rewards to eligible CalOptima Health members who take an active role in their well-being!

View available rewards
Related Articles
Read article
OB/GYN
Birth Control: The Pill

Birth control pills contain hormones that prevent pregnancy. Read on to learn more.

Read article
OB/GYN
Birth Control Methods

Birth control methods are used to help prevent pregnancy. There are many different methods to choose from.

Read article
OB/GYN
The Menstrual Cycle: An Overview

A woman is generally most fertile (able to become pregnant) a few days before, during, and after ovulation.

Read article
OB/GYN
Female Reproductive Anatomy

Your body has a special system built to create and support a growing baby. This is called your reproductive anatomy. Get to know the parts of your body and what they do.