Signs and Symptoms

Advanced HR+, HER2-Negative Breast Cancer

Understanding Your Metastatic Breast Cancer Diagnosis

If you’ve been diagnosed with metastatic breast cancer, it’s important to know that you haven’t done anything wrong. Metastatic breast cancer can happen to anyone. Approximately 155,000 women are living with metastatic breast cancer in the United States.

The majority of people diagnosed with stage IV metastatic breast cancer have already been treated for breast cancer at an earlier stage. Breast cancer can recur months or years after a person’s original diagnosis and treatment, regardless of any preventative measures they've taken.


  • It’s estimated that up to 30% of people who were first diagnosed with early-stage disease will eventually develop metastatic disease
  • Only 6% to 10% of people who are newly diagnosed with breast cancer have metastatic breast cancer


Managing your disease will now be part of your daily life. Metastatic breast cancer, and its symptoms, occur differently for different people, so everyone’s experience is unique. Treatment goals for metastatic breast cancer include slowing the progress of the disease.

You are at the center of your care, so stay involved and continue to be your own best advocate by taking an active role in your treatment. Always remember that you’re not alone in this. There are people who want to help. You can lean on your family and friends or find a support group where you can share your feelings with others who can relate to what you’re going through.