Abstract: Objective To investigate the factors related with plagiocephaly and brachycephaly. Methods 239 infants with plagiocephaly and brachycephaly were investigated, and analyzed with univariate analyses and multivariate Logistic regression analysis. Results The factors, such as gestational age birth (OR=0.636, P<0.001), birth weight (OR=0.095, P<0.001), time of hospitalization (OR=1.307, P<0.001), preterm birth (OR=2.649, P<0.001), stay in newborn intensive care unit (OR=4.456, P<0.001), change the position (OR=0.046, P<0.001), accepted early intervention guidance (OR=0.054, P<0.001), were significantly related with plagiocephaly and brachycephaly. Conclusion Preterm birth, low birth weight, and newborn complications are the risk factors for plagiocephaly and brachycephaly, while change the position and early intervention may prevent it.

Key words: plagiocephaly and brachycephaly, related factor, preterm birth, early intervention