已知烟草含有尼古丁、一氧化碳、致癌物及诱变剂,如:放射性钋、苯并花、二甲基苯并蒽、二甲基亚硝基胺、萘和甲基萘。不管是主动或被动吸烟,吸入烟雾经肺血管导致烟草代谢物的吸收并经血循环传遍全身。烟草代谢物可能经弥散和主动转运的方式,终止在吸烟者的精浆里。为了评价吸烟者的精浆对精子活动力和存活率的影响,选择40例男性进行了研究,其中20例吸烟男性,年龄25～35岁(平均31.3±2.7岁),每日吸烟30支以上,烟龄超过3年;20例不吸烟男性,年龄23～36岁(平均32.7±3.1岁)。参与本研究的受试者无泌尿生殖系统或严重全身性疾病,无嗜酒史,未接触过对性腺有毒性的物质。全部受试者尿检查正常。禁欲3～4d, Nicotine is known to contain nicotine, carbon monoxide, carcinogens and mutagens such as radiophagos, benzofen, dimethylbenzanthracene, dimethylnitrosamine, naphthalene and methylnaphthalene. Whether active or passive smoking, inhalation of smoke through the pulmonary vascular lead to the absorption of tobacco metabolites and circulated throughout the body. Tobacco metabolites may end up in smokers’ seminal plasma in a diffuse and proactive manner. In order to evaluate the influence of seminal plasma on sperm motility and survival rate in 40 smokers, 20 male smokers aged 25-35 (average 31.3 ± 2.7 years) and 30 smokers per day , Smoking more than 3 years; 20 non-smoking men, aged 23 to 36 years (average 32.7 ± 3.1 years). Participants in this study had no genitourinary system or severe systemic disease, no history of alcoholism, and no contact with substances that were toxic to the gonads. Urine examination was normal in all subjects. Abstinence 3 ~ 4d,