[Spontaneous abortion as an indication of degree of risk in pregnancy]. / Spontani pobacaji kao indikacija stupnja rizicnosti trudnoce.

The spontaneous abortions have a complex range of causes and consequences in connection with numerous biological and nonbiological factors. There are certain groups of women with the increased risk of unsuccessful reproduction. Some zygotes are genetically predetermined for abortion immediately or shortly after the conception. The cause, mechanism, pathology and frequency of such cases remain unknown, for the most part.