The infertility is the difficulty of giving the life at the end of 2 years of complete and not protected sexual relations. This thus applies as well to a ground on which any attempt at agricultural culture is unfruitful as for a couple which tests difficulties of having a child. Its origin can be related to disorders of the couple, or the man or the woman.

Immediate causes of infertility

They are multiple and varied.

At the man

Abnormal Spermatozoon S (without Flagelle, without head or Acrosome, motionless, insensitive with the Chimiotactisme), of the Testicule S which do not produce the spermatozoa correctly, of the difficulties for the spermatozoon of fixing itself or has to penetrate in the Ovule at the time of fecundation (bad reaction acrosomiale) seem an increasingly frequent phenomenon. One suspect of many pollutants and chemicals present in our environment to be Disturbing endocriniens.

At the woman

In the years 2000 approximately 13% women suffer from infertility in the USA according to the statistics. The first problem being related on the ovary and the Ovulation, one observes also a bad collecting of the ovules by the houses ovariens at the time of ovulation, a cortical reaction (refittings in the ovule at the time of fecundation) abnormal, a stop of divisions of the Embryon, etc

Origins of infertilities

They are Génétique S, Congénital are, functional (absence of Spermatogenèse by wearing of pants jean, for example) or accidental (deterioration of the genital apparatus following a serious traumatism), even Psychosomatique S or related to environmental pollutants reprotoxic or behaving like hormonal lures for the organization.

Various genes controlling the fruitfulness of the women are indexed, in particular by a recent study, which listed 348 genes implied in fruitfulness in the female mouse, judged by these authors rather close to the other mammals to be a model relating to the functions ovariennes. One starts to seek to include/understand their operation, and to study them so as to be able to produce tests of genetic susceptibility to infertility, and to produce better treatments in the future.

Treatment

Some of these causes of infertility can be raised by hormonal treatment or techniques of Procréation médicalement assisted (LDC).

See too

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