Vaginal health after breast cancer: a complete guide

Vaginal health changes are among the most common and least discussed effects of breast cancer treatment. Oestrogen keeps the tissues of the vagina, vulva, urethra and bladder thick, moist, elastic and resistant to infection. When oestrogen falls because of chemotherapy-induced menopause, ovarian suppression, removal of the ovaries or hormone therapy, especially aromatase inhibitors, these tissues can become thin, dry and fragile. Doctors call this genitourinary syndrome of menopause, and it was previously called vaginal atrophy. Symptoms include dryness, itching, burning or soreness, discomfort when sitting or walking, pain or bleeding during or after sex, changes in vaginal discharge, more frequent vaginal infections such as thrush or bacterial imbalance, and urinary symptoms such as urgency, frequency, burning and repeated urinary infections. Unlike hot flushes, which often ease with time, these symptoms tend to persist or worsen without treatment. The good news is that effective care is available. Regular non-hormonal vaginal moisturisers, lubricants during sex, gentle hygiene, pelvic floor physiotherapy and vaginal dilators help most women. For severe symptoms that do not improve, low-dose vaginal hormone treatment may be discussed carefully with your oncologist. Talking about these concerns is an important part of recovery.

Symptoms are common and treatable

Most women benefit from simple, regular care.

They often need ongoing care

Symptoms may continue while oestrogen stays low, so regular use of treatments helps.

Report unusual symptoms

Bleeding after menopause, sores or unusual discharge should always be checked.

Low oestrogen changes vaginal acidity, which can make infections more likely.

Recognise symptoms

Itching, burning, unusual discharge or odour may signal thrush or bacterial imbalance.

Get checked

A simple swab identifies the cause, so the right treatment is used.

Avoid self-treating repeatedly

Repeated over-the-counter treatments without a diagnosis may mask other problems.

Treat infections during treatment promptly

If your blood counts are low, infections can be more serious, so report symptoms.

Many specialists use a stepped approach, starting with the simplest measures and adding more help if symptoms continue. This allows most women to find relief without hormones.

Step one: gentle care and moisturisers

Stop using scented products, wash with plain water, wear cotton underwear and use a non-hormonal vaginal moisturiser every two to three days for at least a few weeks.

Step two: lubricants and comfortable intimacy

Use a suitable water-based or silicone-based lubricant during sex, allow more time for arousal and choose positions that give you control.

Step three: pelvic floor physiotherapy

If pain or tightness continues, a pelvic health physiotherapist can teach relaxation techniques and guide the use of vaginal dilators.

Step four: review for infection or other causes

Persistent symptoms deserve an examination to check for thrush, bacterial imbalance, skin conditions or other problems.

Step five: discuss hormone options if needed

For severe, persistent symptoms that affect quality of life, your oncologist may discuss low-dose vaginal hormone treatment, weighing your cancer type and hormone therapy.

Review regularly

Symptoms can change over time, so keep telling your team how you are doing at follow-up visits.