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Male factor contributes to about half of all cases and produces no symptoms at all. Where the problem actually sits, how to read a semen analysis, and why a change today takes three months to show.
Reviewed by Dr. Grishma Ranjangaonkar, MBBS, DGO, ICOG Fellowship in Gynecological Endoscopy · Eva WomanCare Clinic, Vashi, Navi Mumbai
A man can feel entirely well, have normal sex drive and normal erections, and still be the reason a couple is not conceiving. Male factor has no symptoms, which is precisely why the test that finds it is so often left until last. This is what causes it, what the report means, and what can actually be done.
The short version
Male factor contributes to roughly half of all cases of difficulty conceiving, either on its own or alongside a female factor. It produces no symptoms whatsoever. A man can feel completely well, have a normal sex drive and normal erections, and have a semen analysis that explains everything.
Despite that, the semen analysis is routinely the last test ordered. We see couples who have spent eighteen months on cycle tracking, hormone panels and tubal tests before anyone asked the husband for a sample that costs a fraction of any of it and takes one morning.
Almost every cause falls into one of three groups, and knowing which group you are in decides the treatment.
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Group
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What is happening
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Common causes
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|---|---|---|
Sperm take roughly seventy-four days to be made, plus a couple of weeks to mature and travel. That single fact explains most of the confusion about timing.
It also means a single abnormal result is not a diagnosis. Semen parameters swing considerably in the same man from week to week, with illness, fever, sleep, stress and the abstinence period all moving the numbers. A fever from a viral illness six weeks ago can produce a poor result today in a man whose fertility is entirely normal.
Results are reported against reference limits published by the World Health Organization, most recently revised in 2021. These are the single most misread numbers in fertility medicine, so it is worth being precise about what they are.
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Parameter
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Lower reference limit
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What it describes
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|---|---|---|
A great deal is sold to men in this position. Very little of it has evidence behind it. These do.
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Finding
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Usual approach
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|---|---|
Myth
“If he can perform normally, his fertility is fine.”
What is actually true
The two are almost unrelated. Sperm production is invisible and produces no symptoms. A man with entirely normal erections, libido and ejaculation can have azoospermia. This is the belief that delays testing more than any other.
Myth
“It is the wife’s problem until proven otherwise.”
What is actually true
Male factor contributes to about half of cases. Starting the investigation with only one partner is not neutral, it is an assumption, and it costs months.
Myth
“One bad report means he is infertile.”
What is actually true
It means one sample on one day was below a reference limit. Parameters swing with illness, fever, sleep and abstinence. Repeat after about twelve weeks before concluding anything.
Myth
“Tight underwear is a major cause.”
What is actually true
The effect of clothing is small at most and gets far more attention than it deserves. Smoking, steroids, a varicocele and significant obesity are the things actually worth acting on.
Myth
“Nothing can be done about severe male factor.”
What is actually true
ICSI changed this completely. Even where very few sperm can be found, including sperm retrieved surgically from the testis, fertilization is often possible. The situations with no options at all are now uncommon.
Semen parameters are the World Health Organization 2021 lower reference limits, which are fifth-percentile values derived from men whose partners conceived within twelve months rather than pass marks. Indications for ICSI and the position on advanced sperm selection techniques follow NICE guideline NG257. This article is general information and does not replace advice from your own doctor, who has your history and your results.
Dr. Grishma Ranjangaonkar
MBBS, DGO · ICOG Fellowship in Gynecological Endoscopy · Maharashtra Medical Council Reg. No. 2014041327
Dr. Grishma has more than fifteen years of clinical experience and practises at Eva WomanCare Clinic in Vashi, seeing women from across Navi Mumbai including Kopar Khairane and Turbhe. Her work spans fertility and pregnancy care, PCOS and menstrual health, and keyhole gynecological surgery.
The full picture for both partners, including when to stop trying alone and come in.
Where concentrating the motile sperm helps, and the point below which it cannot.
Including ICSI, and the two variants of it sold as upgrades that guidance does not support.
For timing while the tests are being arranged, worked out from her own cycle length.
A semen analysis is inexpensive, takes one morning, and a normal result closes off half the investigation immediately. If you have been trying for months and it has not been done, that is the appointment to make. Come together if you can.
