The objective: A study of features of the course of pregnancy and perinatal outcomes in women with thyroid dysfunction. Analysis of the risk prediction of gestational and perinatal complications, depending on the level of antibodies to thyroid peroxidase (AB-TPO). Patients and methods. A retrospective study of 526 histories and stories birth of generations of women-carriers of antibodies to thyroid peroxidase and 489 of their newborns The group of comparison was formed of 40 stories birth somatically healthy women without the elevated levels of AB-TPO and 40 stories of their newborns. The analysis of the course of pregnancy and perinatal outcomes, evaluation of risk prediction of gestational and perinatal complications, depending on the level of AB-TPO. Results. Established that women carriers of AB-TPO age has the older category; among extragenital diseases most often identified diseases of otolaryngology and neurocirculatory dystonia. Obstetric anamnesis burdened by the pregnancy miscarriage and perinatal losses. In the structure of gestational and perinatal complications, the principal place is the threatened miscarriage, preeclampsia, fetal distress, asphyxia of newborns. Discovered the effect of the starting threshold level of AB-TPO on the risk of occurrence impendence interruption of pregnancy (AB-TPO=315 IU/ml); the risk of miscarriage (AB-TPO=339.8 IU/ml); the risk of fetal distress (AB-TPO = of 247.5 IU/ml); the risk of neonatal asphyxia (AB-TPO=234.8 IU/ml). Didn’t discovere influence of starting threshold level of AB-TPO on the risk of preeclampsia and pathological birht. Conclusion. Women carriers of the AB-TPO constitute a group of high risk of obstetric and perinatal pathology. Discovered the influence of the starting threshold level of AB-TPO on the risk of gestational complications. Key words: pregnancy, level of antibodies to thyroid peroxidase, miscarriage, gestational and perinatal complications.