BREAST CANCER PATIENTS CAN SKIP LYMPH NODE SURGERY

A major clinical trial has found that breast cancer patients can safely forgo a standard surgical procedure that removes lymph nodes from the armpit. The procedure, known as axillary lymph node dissection, has long been used to prevent cancer spread but carries significant side effects. Trial results show that omitting the surgery does not compromise patient outcomes. The findings represent a direct challenge to an established standard of care.

Axillary lymph node dissection causes lymphoedema — chronic arm swelling — in approximately one in five patients who undergo it. Lymphoedema is a permanent condition that can cause pain, reduced mobility, and recurring infections in the affected arm. The trial was described as a major study, indicating a substantial patient sample and rigorous methodology. Researchers measured survival and recurrence rates between patients who had the surgery and those who did not.

The results open a pathway for clinicians to revise treatment protocols for eligible breast cancer patients. Removing a procedure with known long-term harm, without reducing survival benefit, directly affects quality of life outcomes at scale. Breast cancer is one of the most commonly diagnosed cancers globally, meaning changes to standard treatment affect large patient populations. Medical bodies will review the trial data before issuing updated clinical guidance.