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IUI for a low sperm count: when it helps
IUI can help when the sperm count or movement is mildly to moderately low. The semen is washed in the laboratory to concentrate the moving sperm, which are then placed inside the womb close to the time of ovulation. If very few moving sperm are left after washing, doctors usually suggest IVF with ICSI instead.
Watch the videos
In these videos our fertility specialist explains IUI for male-factor problems and shows how the sample is prepared; the third video is in Hindi.
How the sperm wash helps
The raw semen is processed in the laboratory to separate the moving sperm from the fluid, dead sperm and debris. This concentrates the useful sperm into a small amount, which is placed directly into the womb, so more moving sperm start closer to the egg.
When IUI is reasonable for male factor
- A mildly or moderately low count, or reduced motility.
- A reasonable number of moving sperm after the wash, which the laboratory reports on the day.
- At least one open fallopian tube, and the woman ovulates, naturally or with medicines.
When IUI is not enough
- A very low count or very few moving sperm after washing.
- No sperm in the semen (azoospermia).
- Several well-timed IUI cycles without a pregnancy.
In these situations IVF, with ICSI when needed, is usually advised.
Before deciding
A single poor semen report is usually repeated, because results vary from sample to sample. Read how each value is reported in our guide to the semen analysis report, and see our page on male infertility treatment.
How the semen report guides the choice
The doctor looks at more than one number. The volume, the count per millilitre, the total count, the share of moving sperm and the shape are read together. The most useful figure for IUI is how many moving sperm are left after washing, sometimes reported as the total motile count. A report that is borderline on one value but good on the others may still suit IUI, while very low movement or very few sperm in the whole sample point towards IVF with ICSI.
Things the husband can do
- Stop smoking and cut down alcohol.
- Keep a healthy weight and stay active.
- Avoid long hot baths, saunas, and keeping a laptop on the lap for long periods.
- Avoid body-building steroids and testosterone while trying for a pregnancy, as they can stop sperm production; if you already take them, tell the doctor.
- Bring a list of all medicines to the clinic; a few can affect sperm.
New sperm need roughly ten to twelve weeks to mature, so a repeat semen test about three months after these changes shows their effect.
Tests for the husband
When the count is low, the doctor may also suggest an examination, hormone blood tests, a scan of the testes and, when the count is very low, genetic blood tests. These look for treatable causes such as a varicocele, a hormone problem or an infection. Finding the cause helps decide whether IUI, medicine, surgery or IVF with ICSI is the right step.
The IUI day for male factor
The sample is usually produced at the clinic after two to five days without ejaculation, as advised. Some men feel anxious about this step; mention it before the cycle starts and another arrangement can be made. The washed sample is placed in the womb close to ovulation, which is timed with scans and often a trigger injection.
When to move on
If a few IUI cycles have not worked, or the washed sample keeps showing very few moving sperm, the doctor will discuss IVF with ICSI, in which a single sperm is placed into each egg in the lab.
Frozen sperm and IUI
If the husband will be away on the fertile days, or if producing a sample on the day is a worry, the lab can usually store a sample beforehand and thaw it for the IUI. Frozen sperm usually moves a little less after thawing, so the lab checks the thawed sample before it is used. This is planned with the clinic ahead of time.
Looking after each other
A low sperm count can feel personal, and men often find it hard to talk about. It is a medical finding, common, and often treatable. Coming to appointments together, asking questions openly and sharing decisions makes the process easier for both partners.
Questions about IUI for male factor
Is IUI an option when the sperm count is low?
Yes, if the problem is mild or moderate and the wash still yields a good number of moving sperm. If very few moving sperm are recovered, IVF with ICSI is generally the next option.
What is a sperm wash?
A laboratory process that separates the moving sperm from the semen fluid and debris, so the moving sperm can be placed in the womb.
Does IUI help poor sperm shape (morphology)?
Sometimes, as part of the overall picture. The number of moving sperm after washing usually guides the decision more than shape alone.
How many IUI cycles should we try for male factor?
Usually a few well-timed cycles. If there is no pregnancy, the plan is reviewed and IVF may be advised.
Should the semen test be repeated before IUI?
Usually yes, because one sample can be lower than usual after an illness or a short abstinence.
Can lifestyle changes improve the sperm count?
It can. Giving up tobacco, drinking less, reaching a healthy weight and avoiding saunas, hot baths and tight underwear may raise the count, and a repeat test after about three months shows whether it has changed.
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What you read here explains fertility care in general terms and cannot replace a consultation. Decisions about your own care should be made with a doctor who knows your history and has seen you. We do not carry out or offer sex determination of any kind, which is prohibited by law in India under the PCPNDT Act.