Welcome to the Offical Mammothon Page.

Mammothon is a fun, easy, and proactive one-week breast screening marathon – challenging women who have never been screened for breast cancer, or who haven’t been screened in more than two years, to  participate in the Ontario Breast Screening Program (OBSP)  to get a mammogram.
The event is hosted by The Central Regional Cancer Program  and partners with OBSP (Ontario Breast Screening Sites) in their  region.

Check the Upcoming Mammothon Events page for the next Mammothon closest to you!