Hormone Receptors in Advanced Breast Cancer
The hormones in your body that controlled the growth of your hips as a teen, your monthly period, and even hot flashes can play a role in breast cancer. That's because some breast cancer cells have a sort of biological on-off switch, called a hormone receptor. Two female hormones can flip these switches "on" and quicken the cancer cells' growth. They are estrogen and progesterone. Tests can show if your cancer has hormone receptors. For advanced breast cancer, your doctor may want to repeat these tests after a while to see if your cancer has changed. It may respond differently to hormones than before. Test results will help your doctor find the best treatment at any stage. HR-Positive Cancer Is Common About 2 out of 3 breast cancers have hormone receptors. They're more common in older than younger women. Compared with other types of breast cancer, hormone-receptor-positive breast cancers, called HR-positive cancers, tend to: Grow more slowly Re