August 2026 Bone Marrow, Stem-Cell and Blood-Cancer Events to Watch

September gets the attention. It carries Blood Cancer Awareness Month, Sickle Cell Awareness Month, and World Marrow Donor Day, and every registry in the world plans its year around them.

August is the month before. It is quieter, and that is exactly what makes it useful — it is when campus drives get booked, when teachers plan the term, and this year, when a grandmother from Deer Park, Washington finishes packing for a 231-mile walk. Here is what is on the calendar, in date order.

All month — National Minority Donor Awareness Month

August is National Minority Donor Awareness Month in the United States. Most coverage frames it around organ, eye and tissue donation, and that framing leaves something out: the observance explicitly includes recruiting bone marrow, blood stem cell and umbilical cord blood donors.

That matters here, because marrow matching works differently from organ matching. Organ transplants are matched largely on blood type and tissue compatibility that crosses ancestral lines more easily. Marrow transplants are matched on HLA markers, which are inherited in linked sets. A registry can only offer patients the donors it actually holds, so a registry built mostly from one set of ancestries serves patients from those ancestries best.

The result is a measurable gap in who finds a fully matched unrelated donor. It is not a gap in the biology of the disease. It is a gap in the registry.

Aug 12 — International Youth Day

International Youth Day is the clearest day of the month to talk about age, because age is where most eligible people talk themselves out of joining.

Two different numbers get confused. The join age is when you can register: commonly 18 to 40 to join free in the United States, 17 to 35 with Canadian Blood Services, and 17 to 55 with DKMS in the United Kingdom. The stay-on age is how long you remain listed once you have joined — generally into your sixties. Someone who joins at 22 is on the registry for four decades.

Registries lean younger because published transplant outcomes are better with younger donor cells, not because older donors are unwanted. If you are 36 and think you have aged out, you have not. The age rules are here.

Aug 17 — National Nonprofit Day

A good day to be honest about what small foundations actually do. The Jada Bascom Foundation does not operate a registry, does not mail swab kits, and does not perform transplants. It does three things: raise awareness, recruit donors, and remove barriers. More about that here.

Aug 19 — World Humanitarian Day

In 2007, a young man in Germany named Torsten Huber read a newspaper article about bone marrow donation and joined the DKMS registry. He did not know anyone who needed a transplant. Two years later his marrow went to a seven-month-old girl in Spokane, Washington.

That is the whole shape of it. Somebody signs up on an ordinary day for no particular reason, and years later it turns out to matter. Torsten and Jada's story.

Aug 28 — Raksha Bandhan

Raksha Bandhan falls on Friday, August 28 this year, and across India and the global diaspora sisters will tie a rakhi around their brothers' wrists.

It is a good moment for a fact that surprises almost everyone: a full sibling has roughly a one in four chance of being a fully matched marrow donor. Around 70 percent of patients who need a transplant do not have a matched donor in their family at all — Jada Bascom was one of them. The bond is certain. The match is a coin toss twice over. The sibling numbers, explained.

Late August — campus drive season

University terms restart, and campuses are where registry drives work best: large numbers of people in the most-requested age range, in one place, with a table and twenty minutes. If you are thinking about organizing one this fall, book it now — kits and volunteers get scarce in September.

September 1 — Jeana starts walking

On September 1, Jeana Moore begins a walk from Seattle to Victoria, British Columbia: roughly 231 miles over about 20 days, on foot the whole way except two ferry crossings and one pedestrian border crossing at the Peace Arch.

She has done this before. Steps to Marrow USA covered 4,434 miles in 15 months, from Fred Hutchinson Cancer Center in Seattle to New York City. Sea to Sea Europe covered more than 1,000 miles in 137 days. This one is shorter and more concentrated: seven registry hub towns, chosen because of who lives in them.

Details, the route, and how to join her for a day are in the walk announcement.

One note on dates

World Marrow Donor Day usually falls on the third Saturday of September. For 2026, the World Marrow Donor Association's own event listing gives a different date, and we are confirming it directly with WMDA before publishing one. We would rather say "later in September" than print a date that turns out to be wrong.