Getting a semen analysis back with a few numbers flagged is common — and it’s usually the moment men start searching for a male fertility supplement. Before you buy anything, it helps to know what each result means, what your doctor will likely do next, and where a supplement realistically fits. Here’s a buyer-focused walkthrough for couples in the US and Canada.
This is educational, not medical advice, and it doesn’t replace a urologist or fertility specialist. For the full couples picture, see our guide to fertility supplements for couples.
1. Read the four numbers that matter most
Labs compare results to reference ranges; the World Health Organization’s 2021 manual lists lower reference limits that many labs use. Ranges vary by lab, so always read your own report’s range column.
| Result | What it describes | WHO 2021 lower reference limit |
|---|---|---|
| Volume | Amount of semen | 1.4 mL |
| Concentration (count) | Sperm per milliliter | 16 million/mL |
| Total motility | Share of sperm that move | 42% |
| Morphology | Share with typical shape | 4% |
A result below a reference limit doesn’t mean you can’t conceive — and a result inside the range doesn’t guarantee you will. Deeper dives: low sperm count, low motility, abnormal morphology.
2. Ask for a repeat test before you change everything
Semen results can vary from sample to sample, influenced by things like a recent fever, abstinence time, or collection issues. Doctors often repeat an abnormal test after a few weeks to confirm. If results are very low or zero, ask about a referral to a urologist — issues such as a varicocele or hormone imbalances need medical evaluation, not just a supplement.
3. Where a male fertility supplement fits
For mild, borderline results, many men pair lifestyle changes with a men’s formula designed to support sperm health. Pick one core formula, not a pile of single-ingredient bottles:
| Report shows | Often considered | Also do |
|---|---|---|
| Borderline count or motility | AGO Dad | Heat, alcohol, smoking, sleep review |
| Borderline results + low energy/vitality | AGO Dad + AGO Sea Oyster | Ask about testosterone labs |
| Very low or zero count | Medical workup first | Urologist / fertility clinic |
Before buying, run the label through our 6-point label check. Never start testosterone or “T-boosters” on your own while trying — see why that matters.
4. Plan for one full sperm cycle, then retest
Sperm take roughly 72–90 days to develop, so judging any change after two or three weeks isn’t realistic. A practical plan: start the formula and lifestyle changes, take it daily for about 90 days, then ask your doctor about a repeat analysis. For what a supplement can and can’t do for count specifically, see supplements for sperm count: what 90 days can do. How many bottles that takes is covered in our 90-day buying guide.
5. Make it a couples plan
Male factor is part of many couples’ fertility challenges, and her side deserves a check too. Many couples start his-and-hers together — AGO Dad for him and AGO Mom for her — so both 90-day windows line up. See the his-and-hers starter combo. If you’ve been trying 12 months (6 months if she’s 35+), see a fertility specialist together.
Results vary and no supplement guarantees pregnancy or a specific test result. Want help reading your situation? Get a free personalized plan.
FAQ
What should I buy after an abnormal semen analysis?
First ask your doctor about a repeat test and next steps. For mild, borderline results, many men pair lifestyle changes with one men’s formula such as AGO Dad, designed to support sperm health.
Can a supplement fix a low sperm count?
No supplement can promise that. AGO Dad is designed to support sperm health as part of a plan with your doctor; very low or zero counts need a medical workup.
How long before a retest after starting a male fertility supplement?
Plan around 90 days, roughly one sperm development cycle, then ask your doctor about a repeat semen analysis.
Is AGO Dad or AGO Sea Oyster better after a semen analysis?
AGO Dad is the core men’s fertility formula. Some men add AGO Sea Oyster for zinc-rich vitality support. Our care team can help you choose based on your report.
Should my partner take something too?
Her health matters equally. Many couples start AGO Mom and AGO Dad together so both 90-day windows line up.
Do you ship to the US and Canada?
Yes. AGO ships to the US and Canada; the care team can confirm delivery times for your area.