B’shas hadchak, may one use, on Shabbos, tissues that are connected to each other and pull them out of the box with his mouth?
Also, if one notices that cleaning oneself on Shabbos leads to bleeding and to pulling out hairs, is this OK, due to kavod habriyos and not having intent/ desire to do these things?
Yes, in these extenuating circumstances where human dignity [kavod habriyos] is at stake one may tear in an unusual fashion. He may wipe himself as well. He should do so lightly in a way that it will not definitely cause bleeding and hair removal. Even if these are inadvertently caused [even definitely] this would be permissible, and should also be done in an unusual way [in this instance when it is definite].
Shmiras Shabbos Khilchisa 23:19