Prevalence of hypothyroidism in subfertile women in a tertiary care centre in North India
2017
Background: Thyroid hormones are essential for normal growth, sexual development and reproductive function. The prevalence of hypothyroidism varies between 2-4% in women of reproductive age group. It can affect the fertility in various ways like sex hormone imbalance, anovulatory cycles, luteal phase defects, and hyperprolactinemia. Objectives: To study the prevalence of hypothyroidism in subfertile patients. Methods: A total of 454 subfertile women visiting the Reproductive Biology department for subfertility were investigated for thyroid stimulating hormone (TSH) and prolactin (PRL). Hypothyroidism was considered at TSH levels of >4.5 μIU/ml and hyperprolactinemia at PRL levels of >25 ng/ml. Results: Of 454 subfertile women 24% were hypothyroid (TSH >4.5 μIU/ml) and 12.8% patients had hyperprolactinemia. Conclusions: TSH and PRL should be measured in all cases desirous of issue before proceeding for more costly tests or invasive procedures.
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