To assess the prevalence of endometrial hyperplasia (EH), endometrial intraepithelial neoplasia (EIN) and endometrial carcinoma between obese and not obese women undergoing IVF techniques for primary or secondary infertility.

Endometrial cancer and pre-neoplastic diseases represent the most incident gynecologic malignant pathologies found in women.1 Although diagnosed in postmenopausal patients, it can be also found in younger patients, especially when associated with some risk factors. Those include weight gain and lifestyle habits, such as consumption of fatty foods that increase estrogen levels. The positive association be- tween infertility and EC is well established. Infertile women with irregular menstrual periods, oligomenorrhea, or chronic anovulation have a risk of developing

A prospective cohort study conducted at "Fertility Center, OB/GYN Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy".

Inclusion Criteria:

• Women undergoing office hysteroscopy prior to IVF techniques

Exclusion Criteria:

• Severe comorbidities (i.e. cardiac, metabolic, neurologic diseases)

Southern Italian women eager for children who are set for infertility work-up at a tertiary university hospital