10/25/2026
Myelodysplastic Syndromes (MDS) is a rare blood cancer that most people have never heard of—which is exactly why today matters.
When people think of cancer, more common diagnoses often come to mind. But for those facing rare conditions like MDS—a group of disorders where the bone marrow does not produce enough healthy blood cells—the journey can feel isolating and overwhelming from day one.
This is precisely why Horse of Many Colors exists. We are dedicated to supporting patients, caregivers, and families navigating the under-recognized and complex diagnoses that often fall through the cracks. No one should have to face a rare condition in the dark, and no diagnosis is too rare for our community to care about.
Today, we honor those living with MDS, amplify their stories, and commit to shining a light on rare blood cancers.