Metastatic breast cancer (MBC)

Metastatic breast cancer means the cancer has spread beyond the breast to other organs. It is stage 4 — a chronic condition to manage, not a sentence.

Metastatic breast cancer — also called stage 4 or advanced breast cancer — occurs when cancer cells settle in distant organs. The most common destinations are the bones, liver, lungs and brain.

Living with MBC

  • Treatment continues in cycles, adapting over the years
  • Options include hormone therapy, targeted therapy, chemotherapy and immunotherapy
  • Symptom control is a first-priority treatment goal
  • Many people work, travel and thrive during treatment

MBC is not curable with today’s medicine, but it is very often controllable. Research keeps extending both survival and quality of life year after year.

In brief

Spread to distant organs
A chronic, manageable condition for many
Survival is measured in years, often many

What you can do

Build your metastatic team

Oncology, pain, nutrition and peer support together.

Report side effects openly

Reporting symptoms lets the team fine-tune care.

Keep learning