Breast cancer is the most diagnosed cancer among women globally, and the number of cases worldwide is estimated to reach over 3.5 million by 2050, new research has found.
In high-income countries, decades of investment in screening, early detection and treatment drove a nearly 30% decline in breast cancer mortality between 1990 and 2023. But in the world’s lowest-income countries, the trend is moving in the opposite direction: Deaths from breast cancer have nearly doubled over the same period, according to a study published Monday in the journal The Lancet Oncology.
