However, we will get back to that, what can influence on a capacity for procreation at a woman. It is possible to select five factors of infertility:
- tube factor (quality of salpinxs passability and retractive ability of salpinxs)
- peritoneal factor (presence of different joints gamet impedimental to transporting)
- endocrine factor (absence of ovulation as a result of different hormonal violations or commons system diseases)
- uterine factor (teratosiss or structure of uterus)
- cervix uteri factor (the features of cervix structure or changes, which hinder to motion of spermatozoids to the ovule).
There is classification, in obedience to which we may select such factors of infertility, as:
- different tumours of uterine system;
- amenoreya;
- oligomenorrhea;
- innormal menstrual cycle (absence of ovulation at the normal rhythm of menstruation);
- innate anomalies of uterine system;
- obstruction of salpinxs;
- presence of joints in a small pelvis;
- endometrioses;
- different system diseases influencing on the state of the hormonal system
On the whole, the specialists cite such data: there are 35 - 40 % cases of infertility from disorders of ovulation, from tube-peritoneal violations - 20 - 40 %, from the different gynaecological diseases (for example, endometrioses) - 15-25 %, on immunological reasons - 2 %. In addition, in spite of achievements of modern medicine, there is the small percent of those cases, when the reasons of infertility are not exposed. Thus, gynaecologists-endocrinologists recommend in a similar situation not to despair and speak to other doctors, to conduct the different methods of diagnostics.
Among the reasons of male infertility (or mionectic capacity for procreation) it should be noted the carried infectious diseases (for example, tuberculosis, meningitis, all diseases of infectious nature, etc.) which are frequently negatively reflected on the sexual system, even if they took place in childhood. In addition, the features of professional activity are taken into account, because influence of radiation, toxic matters, physical or nervous overstrain is instrumental in the decline of activity and viability of spermatozoids. And the use of alcohol too.
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