Board Thread:Boruto Discussions/@comment-10336-20170908030945/@comment-9782468-20170908043604

Piotrus wrote: Well, Suigetsu knew only that the cord belonged to ?/Sarada. ? was to be determined. And then the tests showed ? is Karin. Denying it shouldn't change the outcome, right? If the cord belong to S/S the DNA test should show that, and not implicate Karin. Suigetsu only tested if the Umbilical cord matched Sarada. And it matched Sarada. Since they found the cord itself among Karin's things, they assumed that the cord was from Karin and Sarada.

However, Karin clarifies the situation when she says that the cord itself was actually between Sakura and Sarada, since Karin helped her give birth.

So, the DNA of the umbilical cord and Sarada was the match shown on screen. The confusion occurred when they assumed the cord was Karin's