Male-factor fertility: the basics

Fertility involves both partners, and factors affecting either can be relevant. Assessing both from the outset avoids missing something and helps guide sensible next steps.

A semen analysis is usually the first step. It looks at aspects such as the number, movement and shape of sperm. It is a simple test, though results can be affected by many things, so it is sometimes repeated.

Results are considered alongside the rest of the couple's assessment. Depending on the findings, a specialist may suggest further checks or refer as appropriate, and will talk through the options.

If you are having a fertility assessment as a couple, a semen analysis is a routine part of it. A specialist can arrange the test and explain the results.