Uterine fibroids (also called myomas or leiomyomas) are benign (noncancerous) tumors in muscle tissue that can change the shape or size of your uterus and sometimes your cervix. Fibroids occur when a ...

A 36-year-old woman presented with a lump in her abdomen during her first pregnancy. She told clinicians she had noticed the lump before she became pregnant. She had no pain or other symptoms. The ...