Sperm health and male fertility

A semen analysis measures more than a sperm count. It also looks at how sperm move and their shape. The results need clinical interpretation; a finding that needs follow-up does not by itself mean someone cannot conceive.

If you are trying with a partner, include sperm health in the conversation from the beginning. The NHS says a GP can arrange checks for both partners. You can ask for an assessment without deciding who might be having difficulties.

Talk to your prescriber about testosterone

Testosterone treatment can reduce sperm production, sometimes to the point where no sperm are seen in semen. The American Society for Reproductive Medicine (ASRM) warns about this in its patient information. If you take testosterone and want to conceive using your sperm, discuss that plan with the clinician who prescribes it.

Do not stop a prescribed medicine without talking to your doctor. Bring a list of prescribed treatments and anything bought without a prescription, including supplements or herbal products. Say what you take and what you hope to do; ask how your treatment and fertility plans can fit together.

Anabolic steroids also belong in that discussion. The CDC lists their use among factors that may decrease sperm production, alongside smoking and heavy alcohol use. You can ask for help without first making every change on your own.

Smoking, alcohol and weight

Stopping smoking and reducing alcohol are among the NHS suggestions for people with a low sperm count who are trying to conceive. Heavy drinking can affect sperm production; changing how much you drink does not guarantee that a fertility problem will resolve.

NICHD reports a link between obesity and lower sperm count and quality. The NHS suggests weight support for people who are overweight. Ask what approach is appropriate for your health rather than treating a weight target as proof that fertility has improved.

For an appointment, choose the concern you most want help with. For example: “I smoke and want support to stop,” or “I’m worried about how alcohol fits into this.” Ask what help is available and agree on a next step.

Heat advice has limits

Frequent exposure of the testicles to high temperatures is listed by the CDC as a risk factor for male infertility. Mention regular heat exposure when discussing your work and daily activities with a clinician.

Advice about underwear is less consistent. The NHS suggests loose-fitting underwear because tight underwear can increase testicular temperature and may affect sperm quality. NICHD says underwear choice is not related to infertility. With these differing views, there is no basis for promising that changing underwear will improve the chance of pregnancy.

What happens after the sample

Semen testing is part of an assessment that can also include a medical history and examination. If the first semen analysis suggests a possible problem, the NHS says another is usually arranged around 3 months later. Further tests may follow, depending on the findings.

Ask the clinic for its sample-collection instructions and how you will receive the results. Ask who will explain them, whether another sample is needed and what you’ll discuss at the next appointment.

When to arrange an assessment

Book a GP appointment in the UK, or see your doctor in the US or elsewhere, if pregnancy is taking longer than expected. Seek advice earlier with a history of testicular injury or fertility difficulties, or when planning conception while taking testosterone.

The NHS low-sperm-count page uses over 1 year of trying, or 6 months if the partner trying to become pregnant is 36 or over. US CDC advice uses 6 months when the woman is 35 years or older. These are routes into assessment; known concerns are reasons to ask sooner.