Uterine fibroids are smooth muscle cell tumors which are benign. They could be large and multiple. They are more common during the forties. 70% of women at age 45 have fibroids detected by ultrasound. Black women are twice as likely to have fibroids than white women.

The most common symptoms are heavy periods and pain or pressure. Treatment is recommended in cases where heavy bleeding cause anemia or pain. Additionally infertility may be the result of fibroids. Treatments are medical and at times surgical as myomectomy.