A new Michigan study found that vulvodynia, a vulvar condition causing painful sex, is twice as likely to be found in Hispanic women and is half as prevalent in Black women. This condition can cause sex, tampon use, or even sitting to be excruciating. The research team consisted of members of the University of Michigan Medical School, along with Dr. Ananda Sen, research associate professor of biostatistics, and Dr. Sioban Harlow, professor of epidemiology at the School of Public Health. The study followed 2,542 adult women in southeastern Michigan in the Michigan Woman to Woman Health study. They found that in addition to the striking ethnic differences, younger women, women who had pre-existing sleep problems, and women who suffered from depression and chronic pain disorders were also more likely to develop vulvodynia.