Birla Fertility : Why one semen analysis is not enough for diagnosis of infertility

Varanasi : Male factor is involved in nearly 50% of infertility cases, which makes accurate evaluation essential. Semen analysis is the standard starting point for assessing male fertility, and for good reason. It is accessible, non-invasive and provides important clinical insight into sperm count, motility and morphology. However, it reflects one sample collected on one day, and semen parameters can vary due to several health and lifestyle factors.

Dr Pragati Bharati, Fertility Specialist, Birla Fertility & IVF, Varanasi, explains that sperm production takes approximately 70 to 90 days. This means that a man’s health in the weeks before a sample is collected can influence the results. A recent fever, significant stress, disrupted sleep, alcohol use, medication, illness or even a change in activity levels can affect parameters temporarily. A single analysis done during or shortly after these circumstances may show changes that need to be interpreted in context. Similarly, one normal result may not always rule out an intermittent or underlying sperm-related concern.

This is why doctors may advise more than one semen analysis before drawing conclusions about male fertility status, especially when the first report is abnormal, borderline or does not match the couple’s fertility history. The interval between tests helps doctors understand whether the findings are persistent or temporary. When two analyses produce significantly different results, a third test may be advised before deciding the treatment direction.

Beyond variability, a standard semen analysis does not capture everything clinically relevant to male fertility. DNA fragmentation, which may affect embryo development and pregnancy outcomes independently of conventional parameters, requires separate testing. Sperm function tests, hormonal profiling and, in some cases, genetic assessment can add to the clinical picture that count, motility and morphology alone may not provide. A normal semen analysis with unexplained infertility may still need further evaluation rather than assuming the male factor has been ruled out.

Diagnosing male infertility requires more than one test result. A semen analysis is an essential first step, but it should be interpreted along with medical history, repeat testing when needed and a complete fertility evaluation. This helps couples avoid premature conclusions and ensures that treatment decisions are based on the right diagnosis.