5‑year‑old donates lifesaving bone marrow to save his toddler brother battling a rare leukemia

BELTON, Texas — Five‑year‑old Juelz Bogan became his younger brother’s bone marrow donor after doctors confirmed that 19‑month‑old Jahseh needed an urgent transplant. The toddler is battling juvenile myelomonocytic leukemia, a rare cancer that affects one to two children per million, according to the National Cancer Institute.

Juelz learned he was the best match during testing at Texas Children’s Hospital in Houston. His mother, Shanika Williams, told KHOU‑11 that he asked every week when he could help. She said he stayed focused and determined, even as the procedure approached.

Jahseh Diagnosed with Juvenile Myelomonocytic Leukemia

Jahseh’s medical problems began in fall 2025. Williams said he cycled through RSV, the flu, ear infections and pneumonia. His symptoms then escalated. He developed high fevers, severe nosebleeds and a swollen abdomen.

A pediatrician sent him to the emergency room. Blood tests showed low platelets and red blood cells. Imaging revealed an enlarged liver and spleen. After nearly three weeks of testing, specialists diagnosed JMML, a leukemia that often requires a stem cell transplant.

Transplant Marks Start of Long Recovery

Doctors began chemotherapy aid prepared for the transplant. After screening the family, they confirmed that Juelz was the strongest donor match. The transplant took place on Aug. 18.

Williams said Juelz felt scared but stayed brave. She described him as “awesome” during the procedure. Now, he has returned home and is preparing for school. Meanwhile, Jahseh remains in Houston for continued monitoring. Doctors say the transplant begins a long recovery period.

Family Faces Distance and Financial Pressure

Because the family lives about seven hours from Houston, Williams travels back and forth while caring for her other children. She said the distance and medical demands have created heavy financial strain.

A GoFundMe created for the family says donations will help cover medical bills, travel, lodging, medications and daily expenses. The fundraiser describes Jahseh as a joyful toddler who “continues to smile, laugh, and show incredible strength.”