Hearing that sport, sex or plans for pregnancy become impossible after breast cancer is an idea that often comes up in consultations. It adds needless worry to an already difficult time. Let's look at what the available evidence actually shows.

The myth

"After breast cancer, you can no longer have a normal life: no more sport, no more sex, no more plans for pregnancy."

What the science says

When it comes to sport, the opposite is actually recommended. Anyone with cancer, whether during or after treatment, can take part in physical activity, subject to medical approval and adjustments suited to their individual situation. During treatment, it is recommended to do around 30 minutes of endurance exercise roughly 5 times a week at moderate to high intensity, combined with muscle-strengthening exercises twice a week. Review studies also describe that physical activity undertaken after a breast cancer diagnosis is associated with reduced mortality from this cancer, reduced overall mortality, and a lower risk of recurrence.

As for sexuality, studies show that changes are common, though not universal or permanent. One study of women followed up after treatment for non-metastatic breast cancer found that around half of patients had a sex life affected by the illness, with some experiencing a decrease in the frequency of intercourse, sexual desire and the ability to reach orgasm. These difficulties, linked to treatment and body image, can be discussed and supported in consultation.

Regarding pregnancy, European oncology guidelines state that pregnancy remains a possibility after breast cancer, based on informed discussion that takes into account age, treatments received and the prognostic factors of the disease. A waiting period, generally discussed between the end of treatment and plans for pregnancy, allows the situation to be assessed with the care team.

Why it matters

Believing that a "normal" life is no longer possible can lead some women to give up, on their own, activities or plans that are in fact still within reach. This can deepen the isolation and loss of confidence that are already common after cancer. Bringing these topics back into the open, with precise information rather than preconceived ideas, helps give each patient back some room to decide for herself.

What to remember

Key takeaway

Sport is recommended during and after breast cancer; sexuality may be affected but can be worked on; pregnancy remains possible and can be planned with the care team.

Do not hesitate to raise these questions in consultation: every situation deserves an answer suited to your own history and treatment.