Symptoms and Side Effects

Menopausal Symptoms

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Menopausal Symptoms from Cancer Treatment

While undergoing treatment, you might experience changes to your period or hormonal shifts that feel a lot like menopause—even if you’re nowhere near the age you expected it. These changes can be temporary or permanent, and they may show up differently for everyone. Knowing what’s happening and why can help you better manage symptoms and advocate for yourself during treatment and recovery. Also, visit the Resources for Menopausal Symptoms for more support and information.

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What is Menopause?

Menopause happens when your periods stop for good and your ovaries no longer release eggs or produce estrogen. It’s a natural part of aging, but when it’s triggered by treatment, it can feel confusing and sudden; especially when you’re still in your 20s, 30s, or early 40s.

What is spontaneous (natural) menopause?

This is the kind of menopause most people expect to experience sometime in their late 40s or early 50s. It happens gradually (a process called perimenopause) as the ovaries run out of eggs and stop making as much estradiol (a type of estrogen). You’re officially post-menopausal after 12 months without a period.

What is induced (premature) menopause?

Induced or early menopause happens when something other than age stops your cycle—often cancer treatment. This might happen:

  • After chemotherapy: Chemo can damage your ovaries, which may lead to fewer or no periods, lower estrogen levels, and symptoms that feel like menopause. Even if your period comes back, your ovaries may still be affected.
  • After oophorectomy: Surgery to remove your ovaries causes menopause immediately.
  • Ovarian suppression shots will stop your periods temporarily, even if you haven’t officially gone through menopause.
What treatments can cause menopausal symptoms?
  • Tamoxifen (which blocks estrogen)
  • Aromatase inhibitors like exemestane, anastrozole, and letrozole (which lower estrogen)
  • Ovarian suppression shots

Most younger people don’t go into full menopause right away from treatment, but it’s not uncommon to have changes in your cycle, fertility, or hormone levels. If you’re unsure whether what you’re feeling is “normal,” your care team can help you sort it out—and support you through it.

Managing Menopausal Symptoms

Menopausal symptoms can be triggered by age, treatment side effects, or hormone changes—especially for young adults with breast cancer. You might experience them during or after chemotherapy, or while taking hormonal medications like tamoxifen or aromatase inhibitors. While not everyone has the same symptoms or severity, the impact on your daily life can be real.

The good news? There are ways to manage these changes. Below, you’ll find strategies to help with the most common symptoms.

In the below video, Ann Partridge, MD, MPH, founder and director of Young and Strong, Sandy Falk, MD, director of Gynecology, and Carie Capossela, breast cancer survivor and patient advocate discuss menopausal symptoms in breast cancer survivors.

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