Until now the causes of infertility were believed to exist predominantly in the woman. For a few decades recognition of the influence of the man on infertility has been steadily increasing. The causes of male infertility can come from the man's environment like for example: drugs, medication, alcohol, nicotine, caffeine, radiation, heavy metals (such as mercury, cadmium and arsenic) and pesticides (such as DDT, PCP, HDH).

Organic chlorine compounds like PCP, HCH, HCB, DDT, and PCB can have a significant effect on fertility.

All these compounds surround us in our daily life. They do not decompose in the body and can act as toxins. They can also influence reproduction. This bodily function uses a large area of the body, giving toxins many opportunities to cause damage. Eggs and semen can both be affected. Unfortunately, we only know the exact actions of a small fraction of these chemicals.

In unfertile women observed at the Heidelberg Klinik, the levels of copper, mercury and lead were particularly high. The level of mercury (Hg) was found to be twice as high in patients with dental fillings made of amalgam to those in patients with no amalgam pointing to the origin of mercury in many cases.

With the "DMPS" complexing agent heavy metals can be expelled from the kidneys and the liver through urine.