Mammathon 2025 is Siteman Cancer Center at Northwest HealthCare’s annual breast health screening event. It was established over ten years ago to address the issue of late-stage breast cancer diagnoses in North St. Louis County. By offering mammograms and education, the event aims to raise awareness about the critical importance of breast cancer screening and annual examinations, enabling earlier detection of cancers. By promoting timely screenings, we hope to ensure that cancers are diagnosed and treated at earlier stages.

So far the event has served over 600 women, many of whom had never undergone a mammogram and were overdue for one by over a year or two. Call 314.653.4333 to schedule a mammogram.