Objective To have knowledge about the incidence of congenital hypothyroidism（CH）in neonates

probe into problems existing in the screening and put forward intervention measures so as to improve the neonatal screening rate.Method Data of screening for CH in neonates born in Nan’an District of Chongqing from January

2006to September

2012was collected

and thyroid stimulating hormone was detected using time resolved fluoroimmunoassay in the screening.Results Number of live-birth in the whole district was 28 986and 27 866cases were screened with a screening rate of 96.14%;there were 198positive cases in the preliminary screening for CH with a positive rate of 7.09‰;there were 17cases who were diagnosed with CH with a morbidity rate of 0.61‰.There was no statistically significant difference between overall screening rate in public hospitals and private hospitals;and there was no statistically significant difference between overall screening rate in tertiary level hospitals and secondary level or lower level hospitals.Conclusion Incidence rate of CH in this district is higher than the national level.Screening for diseases in neonates shall be conducted and intervention shall be made in time in an attempt to avoid irreversible damages in vital organs of the affected neonates and insure normal physical and intelligence development of children.