What’s RRM’s stance on thyroid and fertility?

RRM screens for both overt and subclinical thyroid disease in fertility patients, using individualized thresholds rather than routine levothyroxine treatment for all TPO-positive euthyroid patients.

Thyroid function affects fertility in multiple ways. It influences ovulation, cycle regularity, and pregnancy outcomes. Many fertility clinics automatically prescribe levothyroxine for any thyroid antibodies or borderline TSH levels. RRM clinicians take a more precise approach.

Thyroid screening in RRM practice covers overt thyroid disease and subclinical hypothyroidism. When thyroid peroxidase (TPO) antibodies appear in women with normal thyroid function, clinicians evaluate each case individually. The decision to treat depends on specific clinical factors, not just the presence of antibodies.

• The TABLET trial (2019) showed no fertility benefit from routine levothyroxine in euthyroid women with thyroid antibodies
• The T4LIFE study confirmed no improvement in live birth rates with levothyroxine treatment in TPO-positive euthyroid women
• Current guidelines recommend individualized TSH thresholds for preconception and pregnancy care

RRM's Approach to Thyroid and Fertility

Evidence-based guidelines recognize thyroid treatment is not one-size-fits-all. For couples trying to conceive, RRM clinicians consider TSH levels, antibody status, clinical symptoms, and individual risk factors. During pregnancy, thresholds are adjusted based on trimester and clinical presentation.

This individualized approach prevents unnecessary medication while ensuring appropriate treatment for couples who truly need it. Thyroid function is monitored throughout treatment cycles, with protocols adjusted based on measurable progress.

RRM uses evidence-based thyroid screening with individualized treatment thresholds rather than automatic levothyroxine prescribing for all TPO-positive patients.

This information is educational and not a substitute for individualized medical care. Consult an RRM clinician or healthcare provider for guidance specific to your situation.