Krabbe disease is a rare, childhood neurodegenerative disorder caused by galactocerebrosidase deficiency. It results in rapid demyelination, progressive spasticity, mental deterioration, blindness, deafness, seizures, and death. Based on previously published findings, treatment with unrelated umbilical cord blood transplantation is now standard for Krabbe disease, provided that the treatment occurs within the first weeks of life and before symptoms appear.