近年来 ,随着对围产医学的日益重视 ,发现大量不良妊娠结局的发生都与人们生活方式中的种种不良嗜好有关 ,如吸烟、酗酒、吸毒等 ,不仅危害嗜好者的身体健康 ,也累及下一代。不良嗜好对优生的影响已越来越受到人们的关注 ,本文就影响优生的不良嗜好简述如下 :1　吸烟与优生孕期 In recent years, with the increasing emphasis on perinatal medicine, it has been found that the occurrence of a large number of unfavorable pregnancy outcomes is related to various bad habits in people’s lifestyles, such as smoking, alcoholism and drug abuse, which not only endanger the health of the addicts but also involve Next generation The impact of bad habits on eugenics has been more and more people’s attention, this article on the bad habits that affect eugenics are summarized as follows: 1 smoking and prenatal pregnancy