Ovarian endometriosis and vitamin D serum levels

Aim: The aim of this study was to assess the vitamin D serum level in women with ovarian endometriosis; specifically, a possible correlation between the dimensions of ovarian endometriomas and vitamin D serum levels was evaluated.Materials and methods: This was an observational study of childbearing-age women diagnosed with singleton ovarian endometrioma from January 2015 to December 2015. Women diagnosed with multiple ovarian endometriomas or extraovarian endometriosis were excluded.Results: Forty-nine women constituted the initial study cohort. In these women, the mean (SD) 25-OH-D3 serum level was 22.0 (8.9) ng/ml, and 42 of them (85.7%) were diagnosed with hypovitaminosis D. In the hypovitaminosis D women, the mean ( SD) diameter of ovarian endometriomas was 40.222.6mm, while in the normal vitamin D serum level women it was 26.712.1mm (p=0.1). However, a significant linear correlation between 25-OH-D3 serum level and the diameter of ovarian endometriomas was found (r=-0.3, p=0.03).Conclusion: We found a relatively high rate of women with ovarian endometriosis and hypovitaminosis D. Interestingly, a significant linear correlation between 25-OH-D3 serum levels and the diameter of ovarian endometrioma emerged.