The patency of the nose is very important for the newborn. Nasal septum deviation (NSD) is one of the most important factors causing disorders of the patency of the nose. It is usually the result of mechanical trauma. The relationship between the course of delivery and deformation, deviation and luxation of the nasal septum is examined. 410 newborns--297 born in natural labour and 113 in Caesarean section, were examined. Also the kind of birth, the position of the fetus during the first and second stages of labour and the weight of the newborns was analyzed. NSD was found in 14.3% of the cases. Follow-up examination of those children was performed 4-6 months after the first check-up. NSD was observed mainly in children born head first.