Promiscuity in women maybe be a side effect of substance abuse, trauma or mental illness, but it can also be a reaction to changing social norms and conditions. Some people consider a woman promiscuous because she is indiscriminate in her choice of sexual partners, not because of the number of partners.
Studies on promiscuity in women suggest many different motives for the behavior, which range from clinical nymphomania to the possession of a high sex drive combined with a low regard for social codes.
Pathological sexual behavior in women can be a reaction to past physical or sexual abuse. It can be a reaction to the role, or lack thereof, of a woman's father in her childhood. It can be a result of alcohol or drug addiction. Research shows that women with fewer sexual partners are happier, though the link between promiscuity and depression is unclear.
A 2011 study by the University of Minnesota also showed that women of the millennial generation are more likely to be indiscriminate in their sexual partners than ever before. The study's researchers consider this a result of greater gender equality, better birth control and a decline in the social and economic value of marriage.
Women in countries where it is more difficult to access education and employment opportunities are typically less promiscuous than in countries where women can attain social influence through means other than attracting a monogamous partner.