Testing for HER2 + protein is very important as it helps determine the best breast cancer treatment.
Breast cancer is cancer that forms in the cells of the breasts. Some women have (HER2+) breast cancer. (HER2+) stands for Human Epidermal growth factor receptor 2 positive. (HER2) is a special protein found on breast cancer cells that controls cancer growth and spread. HER2 testing is done to determine the best treatment.