Painful intercourse after breast cancer treatment

Pain during intercourse, called dyspareunia, is common after breast cancer treatment, especially for women who have gone through early menopause because of chemotherapy or ovarian suppression, or who take hormone therapy that lowers oestrogen, such as aromatase inhibitors. Oestrogen keeps the vaginal and vulval tissues thick, stretchy and moist. When oestrogen falls, these tissues become thinner, drier, less elastic and more easily irritated, a change known as vaginal atrophy or genitourinary syndrome of menopause. This can cause burning, stinging, tightness, soreness, small tears or light bleeding during or after sex. Once pain has happened, the pelvic floor muscles can tighten in anticipation, making the next attempt even more painful and creating a cycle of pain and avoidance. Other causes can include vaginal infections such as thrush, urinary problems, skin conditions, and emotional factors such as anxiety or low desire, which reduce natural arousal and lubrication. The good news is that painful sex is very treatable. Regular non-hormonal vaginal moisturisers, generous use of suitable lubricants, pelvic floor physiotherapy, vaginal dilators, taking more time for arousal and trying different positions can all make a big difference. For severe symptoms, some hormonal options may be discussed carefully with your oncologist.

Do not just put up with it

Pain is a signal that tissues need care. Continuing through pain can make the problem worse.

Get checked

A doctor or gynaecologist can check for infection or other treatable causes.

It is a medical concern

Raising painful sex with your care team is appropriate and confidential.

When muscles tighten because of pain, specialist physiotherapy can help.

Assessment

A pelvic floor physiotherapist assesses muscle tension and teaches relaxation and breathing techniques.

Dilators

Smooth dilators in graded sizes are used gently with lubricant, starting small, to stretch tissues and reduce fear of pain.

At home

Short, regular sessions at home, at your own pace, build comfort gradually.

Finding a physiotherapist

Ask your team for a referral, as pelvic health physiotherapy is available in many larger hospitals.

Painful sex often becomes a cycle that is hard to break without help. Understanding it makes it easier to change.

How the cycle starts

Dry, thin tissues cause pain during sex. The body remembers this and, the next time, the pelvic floor muscles tighten automatically in anticipation.

Why it gets worse

Tight muscles and anxiety reduce arousal and natural lubrication, so the next attempt is even more painful. Many women then avoid intimacy altogether, which can strain relationships and lower desire.

Breaking the cycle

Treating dryness with moisturisers and lubricants, learning to relax the pelvic floor, using dilators gradually, and taking a break from penetrative sex while exploring other forms of closeness can all help reset the body's response.

Reducing fear

Agreeing with your partner that you can stop at any time, and focusing on comfort and pleasure rather than a goal, reduces anxiety.

Seeking help early

The sooner painful sex is addressed, the easier the cycle is to break, so raise it with your team rather than waiting.