Cord tissue fills up the umbilical cord. It does not include the cord blood.
The cord tissue contains different types of cells (including but not limited to the mesenchymal stem cells) that may play an important role in treatment of different conditions in future. These cells are different from the ones found in cord blood.
Over the last decade, more than 43 studies using the mesenchymal stem cells from cord tissue have been documented ²¹. The cord tissue collection (like cord blood) is harmless and painless to both the baby and the mother.