在各种预防接种中,卡介苗接种可说是比较安全的。尽管如此,卡介苗接种所引起的并发症仍屡见报导。全面研究这个问题十分重要,一方面应探索这些并发症的发生机理,设法减少或防止其发生;另一方面,在今后结核病流行情况日趋好转的形势下,从卡介苗接种后严重并发症的发生率和接种后可能预防的病例数两者间去权衡得失和比较经济效益。国内卡介苗接种后并发症的零星报导甚多,但缺乏科学的系统的统计和报告制度,至今情况不 BCG vaccination is safer in a variety of vaccinations. In spite of this, the complications caused by BCG vaccination are still frequently reported. Comprehensive study of this issue is very important, on the one hand should explore the mechanism of these complications, trying to reduce or prevent its occurrence; the other hand, in the future TB situation is getting better, the incidence of serious complications after BCG vaccination And the number of cases that may be prevented after vaccination to weigh the gains and losses and more economic benefits. There are many sporadic reports of complications after BCG vaccination in China, but there is a lack of scientific and systematic statistics and reporting system so far