What should you know about umbilical cord stem cell transplant?

Cord blood is collected after a baby is born and stored for possible matching with a patient. It contains blood-forming stem cells, which can settle in the marrow and produce red cells, white cells, and platelets. The cells are infused through a vein; this is not an operation on the bone. Before infusion, conditioning treatment may clear space in the marrow and reduce disease activity.

The transplant team considers tissue matching, the patient’s diagnosis, general health, urgency, and the available donor cells. Cord blood can be an option when a closely matched adult donor is not available, although the cells may take time to establish. The treatment plan, infection precautions, transfusion needs, and follow-up are individual.

Before treatment, discuss fertility, vaccinations, medicines, dental care, central-line care, and practical support at home. Conditioning can cause fatigue, nausea, mouth soreness, hair loss, and low blood counts. After infusion, regular blood tests show whether the new cells are taking hold and whether transfusions or infection treatment are needed.

Follow instructions about hand hygiene, food safety, visitors, and avoiding exposure to illness. Take prescribed medicines exactly as directed and attend every review. Your team may monitor for graft-versus-host disease, in which donor immune cells react against the patient’s tissues. [Stem Cell Transplant](/treatments/cellular-and-transplant-therapy/stem-cell-transplant/) provides related treatment information.

After transplant, contact the transplant team immediately for a fever, chills, new cough, breathlessness, severe diarrhoea, repeated vomiting, rash, yellowing of the skin, bleeding, confusion, or a central-line problem. Infection can become serious while blood counts are recovering, so do not wait for symptoms to settle or take non-prescribed medicines without checking. Emergency help is appropriate for severe breathing difficulty, collapse, or uncontrolled bleeding.

Ask whether cord blood is a suitable donor source, how matching will be assessed, what conditioning involves, and how long marrow recovery may take. Ask which medicines prevent or treat graft-versus-host disease, which precautions apply at home, and who to call day or night. If the transplant is being considered for [Leukaemia](/conditions/leukaemia/), ask how it fits with other treatment.