Vaginal Atrophy & Intimacy After Cancer Treatment

Vaginal dryness and pain with sex are among the most common effects of cancer treatment and among the least discussed. This is not something you have to accept quietly — there are specific, well-established things that help.

Most of it comes down to estrogen and to direct tissue damage.

Chemotherapy can lower estrogen levels. The National Cancer Institute notes it "can cause primary ovarian insufficiency. This means the ovaries aren't producing hormones and releasing eggs. Symptoms may include hot flashes, irregular or no periods, and vaginal dryness, which can make sexual intercourse difficult or painful." Chemotherapy can also affect vaginal tissue directly, which may cause sores.

Hormone therapy may cause low estrogen levels, leading to hot flashes, irregular or no periods, and vaginal dryness.

Radiation therapy to the pelvis can cause low estrogen and therefore vaginal dryness. It can also cause vaginal stenosis — NCI describes this as a "less elastic, narrow, shorter vagina" — and vaginal atrophy, meaning "weak vaginal muscles and thin vaginal wall." These changes cause vaginal itching, burning, and inflammation, and pain and discomfort during sex. The American Cancer Society is blunt that radiation scarring can make vaginal sex and internal exams "painful or even impossible" if it isn't addressed.

Lubricants

Use these during sex. The American Cancer Society advises choosing a water-based or silicone gel "that has no perfumes, coloring, spermicide, herbal remedies, or flavors." Apply it generously — to the vaginal opening and the surrounding area, not just inside.

Avoid oil-based products such as petroleum jelly: they can cause yeast infections and they damage latex condoms. Avoid nonoxynol-9 (N-9), which can irritate tissue and make pain worse.

Vaginal Moisturizers

These are different from lubricants. You use them on a regular schedule, not just around sex, to restore moisture to the tissue. The American Cancer Society notes that many women with cancer who have vaginal dryness use vaginal moisturizers several times per week, and that applying at bedtime allows better absorption. They do not replace lubricant during sexual activity — you may well use both.

Vaginal Estrogen

NCI lists vaginal gels or creams to stop a dry, itchy, or burning feeling, vaginal lubricants or moisturizers, and "vaginal estrogen cream that may be appropriate for some types of cancer." That last phrase matters: appropriateness depends on your cancer. The American Cancer Society notes vaginal estrogen comes in gel, cream, suppository, ring, and tablet forms, and that studies indicate minimal absorption into the bloodstream — but says to raise it with your care team, particularly with a hormone-sensitive cancer. This is a decision to make with your oncologist, not one to settle from a website.

The National Institute on Aging notes two non-hormone prescription options approved by the FDA — ospemifene and prasterone — for moderate to severe painful sex caused by menopausal vaginal changes.

Dilators

If pelvic radiation or graft-versus-host disease has affected your vagina, NCI recommends a dilator "to help prevent or reverse scarring." The American Cancer Society describes using one several times a week to prevent scarring and narrowing, and says "the dilator feels much like putting in a large tampon for a few minutes." Dilators come in a range of widths; you move up to a larger size as flexibility improves. Using them alongside Kegel exercises helps you learn to relax the pelvic floor rather than tense against the dilator.

These sources give a frequency ("several times per week") but no precise minutes-per-session or weeks-of-treatment protocol. Ask your radiation oncology or gynecology team for the schedule they want you on.

Pelvic Floor Work

NCI lists exercises for pelvic muscles to lower pain, improve bladder retention, improve bowel function, and increase blood flow to the area, which can improve sexual health. Pelvic floor physical therapy teaches you to relax vaginal muscles, which reduces pain and helps treat narrowing. You can ask your cancer care team or gynecologist for a referral.

Positions and Pacing

Choose positions that let you control the depth of penetration, and spend more time on foreplay before penetration. Small changes, real reduction in pain.

NCI states that most women can be sexually active during treatment, but confirm with your doctor: there may be times when you are at increased risk of infection or bleeding and are advised to abstain from intercourse. Condoms may be advised to prevent your partner's exposure to some types of chemotherapy that may remain in vaginal secretions. And if you are of childbearing age, contraceptives may be advised during treatment and for a period afterward.

NCI suggests asking: What sexual problems are common among women receiving this treatment? When might these changes occur, how long might they last, and will any be permanent? How can they be prevented, treated, or managed? What specialists would you suggest I talk with?

• National Cancer Institute: Sexual Health Issues in Women and Cancer Treatment. https://www.cancer.gov/about-cancer/treatment/side-effects/sexuality-women
• National Institute on Aging (NIH): Sex and Menopause: Treatment for Symptoms. https://www.nia.nih.gov/health/menopause/sex-and-menopause-treatment-symptoms
• American Cancer Society: Managing Sexual Side Effects as a Woman with Cancer. https://www.cancer.org/cancer/managing-cancer/side-effects/sexual-side-effects/women-managing.html

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