Polygamy in Islam is allowed for religious and cultural reasons. According to Islamic teachings, a man is allowed to marry up to four wives, but only under certain conditions.
The primary reason for multiple marriages provided in the Quran is to ensure justice for orphans and widows. It is important to note that polygamy is not meant for the sexual pleasure of males but to act as a social safety net.
The behavior of a polygamous man should be comparable in all events, even if their wives are different in age, beauty, character, social status, and other.
As for the mental condition of polygamous men, one study showed that polygamous men had higher erectile function and lower depression scores than monogamous men. However, other studies have shown that polygamy can lead to mental illness (in particular, depression and anxiety) among women and children.
Women from polygamous households are more likely to be depressed, anxious, hostile, and have lower self-esteem and less satisfaction with life. Polygamous wives are designated to be a disadvantaged subgroup in respect to mental health practices.
Mental health professionals, lawmakers, and society should be aware of the potential negative effects of polygamy on mental health.