Medically reviewed by Dr. Molina Dayal, MD, board-certified reproductive endocrinologist. When heterosexual couples begin a fertility evaluation, it’s important to look at both partners. Male factors contribute to infertility in up to 30–50% of cases, making a semen analysis a key part of the initial workup. At STL Fertility, we believe in a comprehensive, patient-first approach — and that includes making sure male partners feel informed, supported, and comfortable throughout

Medically reviewed by Dr. Violet Klenov, MD, board-certified reproductive endocrinologist. Testosterone Therapy Is On The Rise... But So Are Fertility Concerns Testosterone replacement therapy (TRT) is experiencing a surge in popularity, with prescriptions nearly tripling over the past decade. CBS News reports that prescriptions for testosterone rose from 7.3 million in 2019 to over 11 million in 2024. Testosterone, a male hormone, plays a vital role in the health and ferti

Medically reviewed by Dr. Molina Dayal, MD, board-certified reproductive endocrinologist. When you think of “infertility,” what comes to mind? We’d bet good money that a picture of a man is not the first thing that pops into your head. Many people assume infertility is “caused” by a female partner, but the reality is that approximately 30% of cases are identified as male-factor infertility. And even more surprising, a recent study showed that only 41% of Ob/Gyn physicians ev