Introduction and objective: Every third labour is induced currently. The aim of the study was to evaluate factors predicting a failed labour induction (IOL). Material and methods: This was a retrospective cohort study of 214 labour inductions conducted at Gynecology and Obstetrics Ward of Solec Hospital in Warsaw from January to December 2019. The obtained data were statistically analyzed using the SAS system. Results: The failed induction of labour occurred in 28.97% women undergoing the induction. The risk factors associated with this failure and caesarean delivery (CS) included primiparity (p = 0,0015), arterial hypertension during pregnancy (p = 0,0067), post-term pregnancy (p = 0,0067), BMI of the patient >35 kg/m² (p 3500 g (95% CI: 3448-3655), using dinoprostone in cervical ripening (p = 0,005) and using prostaglandins in IOL (p=0,003). Conclusions: The strongest predictor for failed labour induction is primiparity.