The Religious Authority, Sayyed Muhammad Hussein Fadlullah, considers that all means of contraceptives are deemed permissible if the legitimate conditions are met, whereas, abortion and sterility are prohibited.
According to His Eminence, it is permissible for a woman to use a loop as a contraceptive means, only before the fertilized ovum settles in the womb and not after that.
Moreover, the Sayyed considers that the tubectomy operation is permissible if it is the only means to prevent pregnancy due to the fact that other contraceptives may cause harmful effects on the woman or in case the woman suffers from critical psychological and social circumstances, but, tubectomy is impermissible if there were other means such as tubal ligation. On the other hand, cutting the tubes is a problematical issue, but it is permissible in extremely necessary cases. The general idea is that one can freeze his potentials, but it is prohibited to kill them. It is prohibited to kill a human being, likewise it is prohibited to kill one’s potentials, unless in extremely necessary cases.
On the other hand, His Eminence says concerning the tubal ligation operation: "It is permissible to tie the tubes if the damage that may be caused by pregnancy may be prevented exclusively by this process. But, if there is another safe mean to prevent pregnancy without leading to sterility, then, it is prohibited to tie the tubes."