<unk> s, also known as<unk>  leiomyomas or<unk> s, are benign smooth muscle tumors of the uterus. Most women have no symptoms while others may have painful or heavy periods. If large enough, they may push on the bladder causing a frequent need to urinate. They may also cause pain during sex or lower back pain. A woman can have one<unk>  or many. Occasionally,<unk> s may make it difficult to become pregnant, although this is uncommon. The exact cause of<unk> s is unclear. However,<unk> s run in families and appear to be partly determined by hormone levels. Risk factors include obesity and eating red meat. Diagnosis can be performed by pelvic examination or medical imaging. Treatment is typically not needed if there are no symptoms. NSAIDs, such as ibuprofen, may help with pain and bleeding while paracetamol (acetaminophen) may help with pain. Iron supplements may be needed in those with heavy periods. Medications of the gonadotropin-releasing hormone agonist class may decrease the size of the<unk> s but are expensive and associated with side effects. If greater symptoms are present, surgery to remove the<unk>  or uterus may help.<unk>  artery embolization may also help. Cancerous versions of<unk> s are very rare and are known as leiomyosarcomas. They do not appear to develop from benign<unk> s. About 20% to 80% of women develop<unk> s by the age of 50. In 2013, it was estimated that 171 million women were affected worldwide. They are typically found during the middle and later reproductive years. After menopause, they usually decrease in size. In the United States,<unk> s are a common reason for surgical removal of the uterus.
Uterine fibroid
Uterine inversion
Leiomyoma
Cervical pregnancy
Endometrioid tumor
Ovarian pregnancy
Pelvic lipomatosis
Endometriosis