After a baby arrives, the umbilical cord holds two unique types of stem cells....

https://bizzmarkblog.com/why-do-clinicians-say-stored-cells-still-need-case-by-case-assessment/

After a baby arrives, the umbilical cord holds two unique types of stem cells. Cord blood contains hematopoietic stem cells that regenerate blood and immune systems. Cord tissue stores mesenchymal stem cells which help repair damaged tissue