Focus on men

Did you know…?

The position of the testicles outside the body causes their temperature to be about 2-3 °C below the body temperature. This is a prerequisite for optimal sperm development.

Male fertility

Did you know…?

In assisted fertilisation, these activation steps can now be successfully carried out artificially.

Sperm count in the ejaculate – what is normal?

According to the WHO, a healthy man should produce at least 15 million sperm per millilitre of ejaculate. And the ejaculate volume should be at least 1.5 millilitres. Of these sperm, 4% should be normally shaped and 40% should have good motility. If these values are lower, fertility is impaired. However, even if the sperm cells look normal, they may not be physically fertile. This large volume is necessary because many sperm cells die off on the way to the egg cell or are unable to fertilise it for other reasons.

Possible causes of infertility in men

Unfortunately, it is not always possible to clearly determine the cause of infertility. In 15 to 30% of couples, the cause remains unknown.

What does … actually mean?

… azoospermia? The sperm cells are completely absent from the ejaculate.

… oligozoospermia? The number of sperm cells in the ejaculate is reduced.

… asthenozoospermia? The sperm cells in the ejaculate have limited motility.

… teratozoospermia? The sperm cells are malformed.

Investigations for men

A specialist will perform a series of comprehensive tests to identify fertility disorders. In this case, it will be an andrologist or a specialist in reproductive medicine.

Infertility in men – is it even an issue?

Worldwide, male sperm quality appears to be steadily deteriorating. The reasons are unclear. In 40% of cases of involuntary childlessness, the problem is male infertility. According to the Swiss Federal Statistical Office, male infertility was the most common reason for IVF/ICSI treatment in Switzerland in 2013, being responsible for 38% of cases.