Premature pregnancy(g. praematura) - B., ending in 28-38 weeks with the premature birth of a viable premature fetus.
Causes: previous abortions, multiple pregnancy, pregnancy toxicosis, cardiovascular, endocrine diseases, acute and chronic. maternal illness. The reasons for B. prematurity may also be some occupational hazards, nat. and mental injuries, incompatibility of blood of the mother and the fetus, bad habits of the mother (smoking, drug addiction, drinking alcohol, etc.). Cm.Premature pregnancy, Premature baby.