‘Alarming’ rise of late-stage breast cancer is even worse in women under 40, new study finds
The rates of life-threatening breast cancer are spiking among women of all ages, with a significant increase in those under 40. A new study found that cases of metastatic breast cancer — in which breast cancer cells have spread from the local area of the breast to another site of the body — increased by 3% from 2004 to 2021 among patients aged 20 to 39.