Currently, there is no comprehensive classification of the causes of miscarriage. Apparently, this is due to the fact that it is difficult to reduce the variety of causes leading to abortion into a single system
The term detachment refers to two conditions: immediate detachment (early stages) and critical condition (mid or late pregnancy). In the first case, it is an alarming signal of a possible miscarriage.
Socio-biological factors significantly affect the course of pregnancy and therefore may be associated with miscarriage. Many researchers link miscarriages to their place of residence.
In connection with the use of genetic research methods, there are significant opportunities for expanding the understanding of the genesis of spontaneous abortion.
Even 20 years ago, we believed that the most frequent reason for miscarriage is endocrine disruption in the mother's body, and the most common cause was called ovarian hypofunction.
Among the hormonal disorders that lead to miscarriage, a very large place is occupied by hyperandrogenism - a pathological condition caused by changes in the secretion and metabolism of androgens.
According to many researchers, in the case of hyperprolactinemia, infertility is observed precisely because of its effect on steroidogenesis and an excess of androgens, but if the pregnancy has occurred, then its course usually proceeds without significant complications.
The question of the etiological role of infection is widely debated in the literature. Some researchers believe that infection is one of the most significant causes of miscarriage, both sporadic and habitual, while others believe that for sporadic interruption, perhaps infection plays a role, and for the usual - no.
Intrauterine infection with cytomegalovirus infection is the most frequent among other infections and occurs in 0.4-2.3% (on average in 1%) of all newborns, although this figure varies widely among different populations.
Genital herpes is one of the most frequent human infections. Most researchers believe that the true frequency of the herpes simplex virus in women is not known, since the share of assimptomatic forms and virus carrying is high.