Myths vs facts: hsCRP and fertility

hsCRP (high-sensitivity C-reactive protein) is an inflammatory marker increasingly discussed in fertility contexts. Myth: An elevated hsCRP level alone predicts infertility. Fact: Chronic low-grade inflammation can impair egg quality, implantation, and sperm function. Studies show associations between elevated hsCRP and longer time to pregnancy as well as poorer IVF outcomes. However, hsCRP is not a specific fertility test – it measures systemic inflammation, which can stem from many causes (e.g., obesity, stress, infections). The evidence is moderate: prospective cohort studies exist, but no randomized controlled trials prove a causal effect. A normal hsCRP does not rule out fertility issues, and an elevated level does not guarantee infertility. Clinically, hsCRP is often used as part of a general health assessment, not as a standalone fertility marker. Caveat: Self-interpreting lab values without medical context can lead to misguided decisions. For those trying to conceive, hsCRP should always be evaluated alongside other parameters (hormones, cycle, semen analysis).