Risk factors for endometrial cancer.

Endometrial cancer is the most common malignancy of women in developed countries, and its incidence is rising among pre- and postmenopausal women. In developed and numerous developing countries endometrial cancer, as well as other types of female cancers are an ever-increasing threat that may be explained, among other reasons, by increased life expectancy and changes in lifestyle factors. Endometrial cancer is more common in postmenopausal women than in premenopausal women. Through a review of the literature it was found that the risk of endometrial cancer is positively correlated with older age, early menarche & late menopause, obesity, family history of endometrial cancer (especially among close relatives), radiation exposure, and infertility particularly in the presence of Polycystic Ovarian Syndrome. Long-term use of unopposed oestrogens for hormone replacement therapy also increases the risk of endometrial cancer. Caucasians have a higher incidence of endometrial cancer than African or Asian women. Obese women were found to be at high risk for developing endometrial cancer, while diabetes, hypertension, and geographical and socioeconomic factors are still inconclusive. Finally, smoking is considered as a protective factor against endometrial cancer due to its anti- estrogenic effect.