STRESZCZENIE 
Celem pracy jest ocena postępu I i II okresu porodu płodów o masie powyżej 4000 g (grupa badana), z wyodrębnieniem grupy powyżej 4500 g, w porównaniu z grupą kontrolną płodów o masie 2500?–3999 g. W badaniu przeanalizowano 1201 porody, które odbyły się w Wojewódzkim Szpitalu Zespolonym w Kielcach w latach 1993–2001, w tym w grupie badanej 598 porody i 603 w grupie kontrolnej.

SUMMARY 
The aim of these study was to assess the progress of first and second stage of delivery of fetus with weight over 4000 g, differing the weight group more than 4500 g, compared with the control group of fetal birth weight between 2500?–3999 g. In study case the data of 1201 childbirths which took place in Gyn.-Ob. Department at Province Hospital in Kielce (1993–2001) were analysed – 598 newborns with birth weight over 4000 g and control group of 603 newborns with weight below 4000 g. Assessment of labor complications was based on Friedman’s curve. Appearance of complications in the course of delivery (failure of descent and arrest of descent) was associated with increasing fetal weight, especially in group over 4000 g. The disturbances of second stage of delivery were preceded with disturbances of active phase of delivery. Shoulder dystocia was significantly connected with failure of progression in the second stage of delivery. Increase of number of disturbances in the second stage of labor in group of newborns over 4000 g did not have any influence on the number of carried cesarean sections and vacuums. 
Key words: fetal macrosomia, labor complications, shoulder dystocia, progress of delivery.