My friend sat in a fertility clinic office two years ago with his wife, both of them anxious and a little exhausted. She'd already been through blood draws, an ultrasound, and a procedure to check her fallopian tubes. The doctor turned to him and said, "Alright, we'll need a semen sample. If the count's low, we can go straight to IVF." No physical exam. No questions about his health history. Just a cup and a number.
That moment is so common it barely registers as strange. But if you stop and look at how fertility medicine was built, it starts to make sense-and it's the reason a lot of men waste time chasing a treatment path that jumps right past the thing they need most: a proper diagnosis.
The Missing Men in Fertility Medicine
For decades, infertility was treated as a woman's problem. If a couple couldn't conceive, the woman got the workup. The man was assumed fine as long as he could ejaculate. The first IVF baby was born in 1978, and the entire field of reproductive endocrinology and infertility (REI) grew up around obstetrics and gynecology. Even today, most fertility specialists are OB/GYNs who did a three-year REI fellowship. Their training in male anatomy, male hormones, and semen physiology usually fits into a single textbook chapter and a few lectures.
Andrology-the branch of urology focused specifically on male reproduction-developed on a separate track, much later. The first formal U.S. fellowships didn't appear until the 1990s. There are fewer than 100 board-certified andrologists in the entire country. So the doctors running fertility clinics are experts at retrieving eggs, growing embryos, and managing implantation. Many are not experts at what's actually going wrong on the male side beyond the most basic sperm numbers.
The Numbers That Changed Everything
Two data points make this gap impossible to ignore.
First, the prevalence. The American Society for Reproductive Medicine states that male factor infertility contributes to roughly 40% of cases where a couple can't conceive, and it's the sole or primary cause in about 20%. That's on par with female factor infertility, and it completely upends the old "it's probably not the guy" default.
Second, the long slide in sperm counts. A 2023 meta-analysis by Levine and colleagues, published in Human Reproduction Update, pulled data from 53 countries and found that average sperm concentration dropped by more than half between 1973 and 2018. The decline isn't slowing. The trend line is a long, steady downward slope, not a blip.
Take those two together: male factors are a major piece of the puzzle, and overall sperm health has halved across two generations. The need for specialists who actually understand the male reproductive system isn't a niche concern. It's a glaring hole in the medical training pipeline.
The Andrology Gap in Action
A standard fertility workup at many high-volume centers goes like this: one semen analysis measuring volume, concentration, motility, and morphology. Maybe a hormone panel (testosterone, FSH, LH). That's it.
The problem is that a basic semen analysis skips a huge amount of information. It doesn't measure DNA fragmentation-the amount of chromosome damage inside the sperm head-which has been linked to miscarriage and failed IVF cycles even when all the other numbers look fine. It doesn't screen for oxidative stress, which can be ramped up by inflammation, a varicocele (dilated veins around the testicle), or environmental exposures. And it rarely includes a physical exam by someone who knows the anatomy of the vas deferens, the epididymis, and the testicular blood supply well enough to spot structural problems within minutes.
A reproductive urologist will usually repeat the semen analysis because one sample is unreliable-sperm quality swings from month to month for reasons as simple as a mild fever you had two months ago. They'll order a scrotal ultrasound to look for varicoceles, which show up in roughly 35% of men with primary infertility and can often be fixed surgically. They'll ask about habits that general clinic forms ignore: sauna use, hot baths, laptop-on-the-lap, the type of underwear you wear all day, the kind of work you do. That stuff matters.
There's real research behind this. Shefi and colleagues, in a 2007 Fertility and Sterility paper, showed that men who stopped hot baths, hot tubs, and tight clothing recovered measurable semen quality within three to six months. Garolla and team, in Human Reproduction (2013), found that regular sauna use temporarily lowered sperm count and worsened morphology, and those parameters bounced back after the heat exposure stopped. These are reversible, well-documented effects. A doctor trained in andrology knows to ask. A busy clinic covering both partners in a 30-minute slot often doesn't.
What a Real Workup Looks Like
The men I've spoken to who came out the other side all describe a moment when someone finally did a thorough evaluation instead of treating the first semen result as a verdict. Based on guidelines from the American Urological Association and the European Association of Urology, that kind of evaluation typically includes:
- A detailed history covering more than "how long have you been trying." It digs into childhood illnesses, previous surgeries (infant hernia repair can sometimes affect the vas deferens), medications (some blood pressure drugs, SSRIs, and finasteride have documented effects on sperm), and occupation (pesticides, solvents, heavy metals).
- A focused physical exam of the scrotum, prostate, and secondary sexual characteristics, done by someone who examines testicles every day.
- At least two semen analyses spaced several weeks apart, interpreted using the latest WHO criteria. The 6th edition, released in 2021, tightened the reference ranges further.
- Hormone testing that goes beyond total testosterone to include free testosterone, SHBG, FSH, LH, estradiol, and often prolactin.
- DNA fragmentation testing (using sperm chromatin structure assay or TUNEL) when couples have unexplained infertility or repeated pregnancy loss despite normal basic parameters.
- Imaging-a scrotal ultrasound-to look for varicoceles, cysts, or blockages.
- An honest conversation about nutrition, body composition, and environmental exposures. A meta-analysis of dietary patterns and semen quality in Human Reproduction Update found that diets heavy in processed meat, trans fats, and sugary drinks were consistently tied to worse sperm parameters, while higher intake of vegetables, fruits, fish, and nuts was linked to better outcomes.
A real male fertility evaluation isn't one test. It's a sequence that uncovers causes, a lot of which can be treated without ever touching a petri dish.
Red Flags and Questions Worth Asking
Credentials on the wall matter less than how the clinic handles the male partner. Here's what to watch for:
- One semen analysis, then straight to treatment. Sperm parameters are volatile. A bad result could be the echo of a fever a couple of months back-anything over 101°F can disrupt production for 60 to 70 days. A solid specialist repeats the test and wants to know why it might be off.
- IVF before a physical exam. This is the complaint I hear most often from men who later found an andrologist. IVF is incredible technology, but if the strategy is to bypass the male factor instead of investigating it, you lose the chance to fix something reversible. You also lose the chance to learn whether sperm trouble is flagging a bigger health issue-below-average semen parameters can sometimes be an early sign of cardiovascular or metabolic problems down the road.
- No hands-on check. A basic exam can spot a varicocele, an absent vas deferens, or testicular shrinkage in minutes. If no one ever examined you, the workup was incomplete.
Questions to bring up:
- "What percentage of your patients are male?" (If it's under 20%, their day-to-day andrology experience is thin.)
- "Do you include a scrotal ultrasound and physical exam at the start?"
- "When do you recommend DNA fragmentation testing?"
- "What lifestyle and environmental factors do you routinely ask about-heat, chemical exposures, cycling, laptop use?"
- "If you find a varicocele, what's your threshold for surgical repair?"
A trained andrologist answers these easily and has a clear rationale for each one. If you get vague answers, you're probably not talking to the right specialist.
The Environmental Angle
The biggest shift in male fertility research right now is the recognition that environment plays a larger role than anyone used to admit. Sensitive analytical methods have now found microplastics in human testicular tissue and seminal fluid in multiple studies-Hu et al., Toxicological Sciences (2024), and Li et al., Science of the Total Environment (2024), among others. Those findings are associations, not proof of cause. No one can say yet that the particles themselves are lowering fertility. But the fact that plastic fragments are showing up in the tissue where sperm develop forces a conversation that was dismissed ten years ago.
Endocrine-disrupting chemicals like phthalates and bisphenols are another live area. A 2021 review by Rodprasert and colleagues in Frontiers in Endocrinology pulled together large epidemiological studies linking higher urinary concentrations of these compounds to lower testosterone and poorer semen quality. The evidence isn't airtight, but it's solid enough that many andrologists now discuss plastic exposure, personal care products, and pesticide residue as part of a full consultation.
When you're picking a specialist, look for someone whose diagnostic framework has been updated in the last decade. If the clinic ignores environmental health research entirely, they're leaving relevant information off the table. The best ones aren't alarmists. They won't tell you to purge your house of plastic. They will ask what you do for work, what you put on your skin, and what you wear all day-because those questions are now part of a thorough history.
Where This Is Headed
The field is finally inching toward a reality where male fertility won't be an afterthought. At-home sperm tests are getting more capable, measuring motility and DNA integrity alongside count. Telemedicine lets men in rural areas consult andrologists hundreds of miles away. Genetic panels can screen for dozens of mutations affecting sperm production and transport. The conversation, slowly, is shifting from "we'll just do ICSI" to "let's find out why your sperm are struggling first."
The takeaway for a man isn't complicated. The fertility industry was built around women's bodies, and that's fine-but it means you need to be deliberate about finding someone who actually trained to understand yours. Don't assume the nearest fertility center has that expertise. Look for a urologist with an andrology focus. Ask the hard questions. Demand a real workup. The data is on your side.
This content is for educational purposes only and is not medical advice. Oakman products are designed for physical comfort and cooling; they make no claims about fertility, sperm quality, or hormone levels. Consult a healthcare professional for personalized advice.
Frequently asked questions
what is an andrologist and how is that different from a fertility doctor
An andrologist is a urologist who has specialized in male reproductive health. Most fertility doctors are OB/GYNs with a fellowship in reproductive endocrinology, and their training is centered on the female reproductive system. An andrologist's focus is the male side-sperm production, anatomy, hormones-and they are trained to do a full workup that often goes beyond a basic semen analysis.
does a varicocele always need surgery to improve fertility
Not always, but it's worth a real evaluation. Varicoceles show up in about 35% of men with primary infertility. The decision to operate depends on factors like the size of the vein enlargement, whether semen parameters are clinically low, and how long you've been trying. A reproductive urologist can walk you through the specific numbers rather than giving a one-size-fits-all answer.
can lifestyle changes actually improve sperm quality enough to avoid ivf
In many cases, yes. Research has shown that stopping hot baths, sauna use, or tight clothing can lead to measurable recovery in semen quality within three to six months. Diet improvements-more vegetables, fish, and nuts, less processed meat and sugar-are also linked to better sperm parameters. The key is that someone needs to identify the reversible factor first, which is why a thorough history matters.
why does the fertility clinic jump to ivf instead of testing me further
Fertility clinics are built around assisted reproduction, and their expertise is in egg retrieval, embryo development, and transfer. Many clinics lack a specialist trained to investigate the male side at a deeper level. If no one does a physical exam, repeats the semen analysis, or orders a DNA fragmentation test, you're being funneled toward IVF without a complete diagnosis. That pattern is common, but it's not something you have to accept.