What does a semen analysis measure, and why do one before choosing a fertility clinic?
If you are comparing fertility clinics, success rates and treatment costs, there is one question worth answering before any of it: what does a semen analysis measure, and have you had one? Marking Men's Health Week (15 to 21 June), this article looks at the test that shapes which treatment, and which clinic, is actually right for you.
Male factors contribute to around half of all cases where couples have difficulty conceiving, according to the NHS. Despite this, many couples begin researching IVF before the male partner has been tested at all.
The five things a semen analysis measures
A diagnostic semen analysis assesses a sample against World Health Organization (WHO) reference values. The headline parameters are:
1. Volume. The total amount of ejaculate, with a WHO lower reference of 1.4ml. Low volume can affect how many sperm reach the cervix.
2. Concentration. Sperm per millilitre. The WHO lower reference value is 16 million/ml. Below this is classed as oligo…
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