About 20% to 80% of women develop<unk> s by the age of 50. Globally in 2013 it was estimated that 171 million women were affected. They are typically found during the middle and later reproductive years. After menopause they usually decrease in size. Surgery to remove<unk> s occurs more frequently in women in "higher social classes". Adolescents develop<unk> s much less frequently than older women. Up to 50% of women with<unk> s have no symptoms. The prevalence of<unk> s among teenagers is 0.4%. Europe The incidence of<unk> s in Europe is thought to be lower than the incidence in the US. United States Eighty percent of African American women will develop benign<unk>  tumors by their late 40s, according to the National Institute of Environmental Health Sciences. African American women are two to three times more likely to get<unk> s than Caucasian women. In African American women<unk> s seem to occur at a younger age, grow more quickly, and are more likely to cause symptoms. This leads to higher rates of surgery for African Americans, both myomectomy, and hysterectomy. Increased risk of<unk> s in African Americans causes them to fare worse in in-vitro fertility treatments and raises their risk of premature births and delivery by Caesarean section. It is unclear why<unk> s are more common in African American women. Some studies suggest that black women who are obese and who have high blood pressure are more likely to have<unk> s. Other suggested causes include the tendency of African American women to consume food with less than the daily requirements for vitamin D.
Uterine fibroid
Uterine inversion
Leiomyoma
Cervical pregnancy
Endometrioid tumor
Ovarian pregnancy
Pelvic lipomatosis
Endometriosis