Abstract: The fetal development is closely related with the adverse pregnancy outcomes such as miscarriage, dystocia, congenital malformation, premature baby, low weight baby and so on. It is also a potential predictor of the fetal origin of some adult diseases. Most of the researches on the risk factors affecting fetal development were focused on the mother origin in recent years. The risk factors of father origin can be classified into two groups: the heredity-related factors such as age, diseases, somatotype, lifestyle and environmental exposure which could disturb the integrity of genomics of father origin or the genomic expression; the social and environmental factors such as psychological state, occupation and income which could mainly affect maternal pregnancy environment and life quality. Two kinds of factors can result in abnormal fetal development in uterus, which is related to adverse outcomes of pregnancy. It is benefit for the fetal development and the infant and adult health to offer genetic counseling to those couples with high-risk factors.

Key words: Pregnancy, Fetal development, Heredity, Environmental Exposure, Fathers