To explore the influencing factors of major birth defects.The children of 0 -3 years and their mother from six different districts were surveyed from November 2009 to December 2009.The incidence rate was 134.27/10 000 (493/36 716)in 6 counties. And the first five birth defects were as follows:congenital heart disease,neural tube defects,cheilopalatognathus,polydactylia and hypophrenia.The risks and protective factors of the first 5 birth defects were different.Anamnesis of birth defects and defective children from relatives,multiple pregnancy & birth and intake of antipyretic analgesics during pregnancy were the common risk factor for the first 5 birth defects.The key points for the prevention of birth defects are to reinforce the pre-pregnancy guidance,the screening and evaluation of risk factors and disease prevention during pregnancy.

[Objective]To explore the medicinal efficacy of Semen Sinapis Albae and its application value in gynecological diseases,hoping to provide reference for the treatment of modern gynecology diseases.[Methods]Through consulting ancient classics,literature and clinical consultation,it summarizes the medicinal efficacy of Semen Sinapis Albae and its wise application in the clinical treatment of gynecology in ancient and modern Chinese medicine.[Results]Semen Sinapis Albae can eliminate phlegm,"soothe five Zang-organs",enter the blood flow to remove blood stasis.Semen Sinapis Albae,with the acridity character,also can help ovulation.Meanwhile,the external application can promote transdermal absorption.In the clinical application of gynecology,it can help treat polycystic ovary syndrome(PCOS),eliminate phlegm and unblock collaterals to treat infertility,treat amenorrhea with its pungent,warming and dispersing properties,regulate dysmenorrhea with internal and external treatments,reduce swelling and dissolve lumps.[Conclusion]Semen Sinapis Albae can serve the purpose of elimination as a tonic and combination of elimination and tonic in clinical applications.Through flexible combination of prescription and addition and reduction,it can play a multiplier effect on the treatment of gynecological diseases.