Why is it not permissible for a woman to have more than one husband, while it is permissible for a man to have more than one wife?

The prohibition of polyandry for women is linked to the belief in God, as all monotheistic religions agree on this. God made women vessels for pregnancy, and if a woman were to conceive from multiple men, lineage would become mixed, and children would become displaced. Furthermore, polyandry for women leads to the spread of serious diseases, which is why the waiting period ('iddah) was legislated for women to purify their wombs.