Skip to main content
ArhamDiagnostics
Biochemistry

CA 15-3

Follows treated breast cancer for signs of recurrence.

Also known as: CA15-3, breast cancer marker

We can collect this sample at your home, free of charge. Book a home visit.

Turnaround
24–48 hours
Preparation
No fasting needed. Eat and drink normally.
Sample
Blood sample

Questions about this test? Message us

About this test

CA 15-3 is not sensitive enough to find early breast cancer and is not a screening test — mammography is. Where it earns its place is in tracking known advanced disease, where a rising trend can signal progression before symptoms do.

What it measures

  • Serum CA 15-3

A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.

Related to

  • Cancer screening
  • Women's health

Often ordered with this