This also looked like it would be permanent, due to the fact, based on what Sasuke said about the experiments =, the body changes we designed to happen upon conception and develop through out the pregnancy and become permanent so further conception can be possible. The body was creating something like a vagina between Sasuke's anus and genitals. How exactly was he supposed to give birth? Tsunade answered that. He was 7 months along and getting more and more nervous by the hour.
