الملخص

Background: Vitamin D can enhance semen quality and stimulate ovaries. Earlier research has linked fertility problems to a vitamin D insufficiency. However, because the field of study is very young, further research is required to establish the link between vitamin D and fertility. Managing the levels of calcium and phosphorus in the blood and maintaining the health of the bones both depend on vitamin D. The main advantages of vitamin D are:- Increasing oral health,  Supporting the immune system,  Strengthening bones and muscles , Potentially lowering the incidence of cancer, managing hypertension, preventing diabetes, and promoting a healthy pregnancy. Methods:  matched the concept of "vitamin D" with a number of other concepts: " syndrome of polycystic ovary (PCOS) ʺ, "ovarian reserve,"  "endometriosis," and "in vitro fertilization." Results: There were conflicting findings on a state of vitamin D in polycystic ovary syndrome, in vitro fertilization and endometriosis. Anti-Müllerian hormone (AMH) levels in  infertile females have not been found to significantly correlate with vitamin D concentrations in certain studies, however vitamin D deficiency may be related to a decreased ovarian reserve in females above the age of 40. Conclusion: Both fertile and infertile females frequently suffer from vitamin D deficiencies. This deficit is linked to a number of unfavorable results in various infertility-related disorders. Vitamin D influences endometrial thickness, in spite of that there is many contradictory research on the link between vitamin D state and AMH , endometriosis and PCOS.