Expecting twins comes with twice the excitement and, naturally, twice the questions. Parents have many things to plan before the babies arrive. Cord blood banking can be one of them.
A common question is whether twins need separate cord blood banking plans.
In most cases, each baby’s cord blood is collected and stored separately. Each twin has their own umbilical cord, and the cord blood contains stem cells with that baby’s unique genetic characteristics. Storing both samples can give the family more options in the future.
Why Are Separate Cord Blood Samples Important?
Cord blood contains blood-forming stem cells. These stem cells may be used in certain medical treatments, including treatments for some blood disorders and immune system conditions.
Each baby’s cord blood is different. This remains important even when the twins are identical.
Identical twins share very similar genetic material, but they should not automatically be considered a perfect match for every medical purpose. If a transplant is ever needed, doctors can perform compatibility testing to determine whether a particular cord blood unit is suitable.
For fraternal twins, separate banking can be even more important. Their genetic profiles are different, just as they are between other siblings.
Storing each sample separately may provide:
- An individual cord blood unit for each child
- A potential source of stem cells for the child who donated the sample
- Another possible option for a sibling if medically appropriate
- More flexibility if one sample does not contain enough cells for a particular treatment
Can One Twin Use the Other Twin’s Cord Blood?
Possibly.
One twin’s cord blood may be considered for the other if a transplant is needed. However, being twins does not automatically mean the cord blood will be suitable.
Doctors look at several factors before making this decision. These can include HLA matching, the number of cells available in the sample, the child’s medical condition, and the specific treatment being considered.
For this reason, storing both babies’ cord blood can give families an additional option. It does not guarantee that either sample will be suitable for a future treatment, but it can preserve another potential resource.
What Should Parents Consider When Banking for Twins?
Parents expecting twins may want to speak with their healthcare provider and cord blood bank before delivery. The collection process can be slightly different when two babies are being delivered, so planning ahead can make things easier.
Some useful questions to ask include:
- Can cord blood be collected from both babies?
- Will each baby’s sample be stored separately?
- How is each sample identified and tracked?
- What happens if one sample has a low cell count?
- How are the samples tested before storage?
- How are the cord blood units stored? Are there additional costs for collecting and storing samples from twins?
Understanding these details can help parents make a decision without feeling rushed.
Conclusion
Twins generally have separate cord blood samples, and banking both may give families greater flexibility for future medical needs. While one twin’s cord blood may potentially be considered for the other, compatibility must be assessed medically rather than assumed based on the fact that they are twins.
A conversation with the healthcare provider and cord blood bank can help parents understand their options and choose an arrangement that fits their family.