Why is a man allowed to have more than one wife in Islam? i.e. why is polygamy allowed in Islam?

Answer:

1. Polygamy means a system of marriage whereby one person has more than one spouse. Polygamy can be of two types. One is polygyny where a man marries more than one woman, and the other is polyandry, where a woman marries more than one man. In Islam, limited polygyny is permitted; whereas polyandry is completely prohibited.

Now coming to the original question, why is a man allowed to have more than one wife?

2. The Qur’an is the only religious scripture in the world that says,"marry only one".

By Rabi'ah Hakeem

In light of the experience of the past years, it is time to take stock and try to halt the ever-mounting tide of divorces among Muslims. It is not unusual today to find Muslim women (and even an occasional Muslim man) who, by the time they are 30 or 35, have been married three or four times, their children suffering again and again through the trauma of fatherless and broken homes. Accordingly, we may list a few essential points to be considered by both brothers and sisters in the process of choosing a partner in life (although the masculine pronoun has been used throughout for the sake of simplicity, the following is generally equally applicable to both men and women).