I think you mean more potent.
Yes. If the injury is at the base of the spine, impotence may well be a problem.
Woman can be infertile or sterile.
its important because mostly when its floods it waters the crops rivers make materials to make papyrus
"lacking power or ability" - or "(of a male) unable to copulate" http://wordnetweb.princeton.edu/perl/webwn?s=impotent