Effect of Vitamin D Status on Clinical Pregnancy Rates Following intra cytoplasmic sperm injection

Abstract

Infertility is a complex disorder with significant medical, psychosocial, and economic aspects Infertility has been defined by the World Health Organization (WHO) as the failure of a couple to achieve a clinical pregnancy after twelve months of regular intercourse without the use of contraception The World Health Organization estimated that approximately 10-25% of couples have infertility disorder. Infertility affects about 80 million people across the world. Assisted reproductive technology (ART) is used to achieve pregnancy by artificial means Thirty per cent of infertile couples worldwide are diagnosed with unexplained or idiopathic infertility and the problem is defined as the lack of an obvious cause for a couple's infertility and the females’ inability to get pregnant after at least 12 cycles of unprotected intercourse or after six cycles in women above 35 years of age for whom all the standard evaluations are normal. The veracity of ‘unexplained infertility’ term has been challenged by m