Board Thread:Questions and Answers/@comment-81.167.2.56-20170304233306/@comment-30963932-20170308180907

A Ghoul can be hurt by a normal needle if enough force is put on his body. A Ghoul's skin is not impenetrable, they're just many times stronger then a normal human, and the latter can't hurt them because of that. Another Ghoul could've done this for him.