A microscope photo of sperm being implanted into an egg

An Improper Functioning Thyroid Doesn’t Influence IVF Outcomes or Increase Miscarriage Rates

A recent study published in the March 2018 edition of The Journal of Clinical Endocrinology and Metabolism reevaluated data from prior studies which were completed between January 1990 and May 2017.  The researchers were examining the impact of thyroid autoimmunity on the outcomes of patients who utilized In Vitro Fertilization (IVF) with ICSI. This is a nice summary study, yet again, indicating that thyroid antibodies DO NOT influence IVF/ICSI outcomes. There is also no shown increase in miscarriages in these couples.

At MCRM Fertility, we have been monitoring thyroid antibodies in patients and likewise, have seen no change in outcomes. Patients with thyroid antibodies and elevated TSH/low T4 levels should receive treatment for low thyroid, of course, but not for the purpose of preventing miscarriages or IVF failure. Patients with high antibodies but normal TSH/T4 levels need periodic blood tests to monitor this and start thyroid hormone therapy if the TSH elevates or T4 is below normal.

Peter Ahlering, MD

Medical Director