Abstract: Objective To investigate the relationship between the delivery gestational age, birth weight and fidgety movement. Methods 81 infants in fidgety movement phase were divided into preterm group and full-term group according to their delivery gestational age, into <2500 g group and ≥2500 g group according to their birth weight. The number of different kinds of General Movements (GMs) was compared.The correlation between birth weight, delivery of gestational age and GMs was analysed. Results The number of fidgety movement was more in the full-term group than in the preterm group (P=0.001), while the number of absence of fidgety movement was significantly less (P=0.003). The number of fidgety movement was more in the ≥2500 g group than in the <2500 g group (P=0.001), the number of absence of fidget movement was significantly less (P=0.003). The GMs was correlated with birth weight and delivery gestational age. Conclusion Premature and low birth weight are the risk factors for abnormal fidgety movement.

Key words: fidgety movement, premature, low birth weight, infants