National Bone Marrow Donor Awareness Month 2026

National Bone Marrow Donor Awareness Month (also called National Marrow Awareness Month in some calendars) is observed throughout November. In 2026 that means the full month of November 2026 - not a one-day holiday. The month spotlights the need for bone marrow and blood stem cell donors and points people to reputable registries such as NMDP (formerly Be The Match). Exact founding credit is not always documented in a single proclamation. It is not a U.S. federal holiday. This page is not medical advice - check official registry eligibility rules before joining.

Month vs day (and November awareness neighbors)

A November 1 listing is a convenience for the month opener, not the whole observance. Related donation dates include National Donate Life Day and National Donate Life Month. Same-month awareness neighbors include National Diabetes Awareness Month. For the month opener listing, see the November 1 hub. Month hub: November national days.

A short, defendable context

Why registries exist. Many patients who need a transplant do not find a match in their immediate family. Exact percentages belong to named registry or clinical sources for a given year - this page does not invent soft stats.

NMDP (formerly Be The Match). NMDP is the major U.S. registry brand today. Older materials still say Be The Match - same family of registry guidance for many readers. Eligibility, process, and risks belong to official registry materials and clinical teams - not this calendar article.

Cheek-swab overview (high-level). Joining a registry often starts with a simple swab kit for people who meet eligibility rules. Do not treat this page as a how-to for medical procedures.

Founder of the month. Exact single founder or proclamation is often unclear. Frame as an awareness campaign associated with the transplant and donor-recruitment community (NMDP, nbmtLINK, and peers).

How to observe Bone Marrow Donor Awareness Month

1. Read official NMDP eligibility basics on the registry’s own site - rules change; use the source of truth.
2. Join a reputable registry only if eligible - never pressure someone who is unsure or ineligible.
3. Share accurate registry links not myths about who can or cannot join.
4. Support patient or transplant organizations you trust (time, funds, or awareness - your choice).
5. Thank donors and families when appropriate - without turning gratitude into recruitment pressure.

Facts

• Every 3 minutes someone in the US is diagnosed with blood cancer
• 70% of patients don't have a matching donor in their family
• You could be someone's only hope for survival
• Registration is simple - just a cheek swab
• Donors aged 18-40 are most likely to be chosen