Objective:To discuss the correlation between nerve growth factor(NGF)in urine of overactive bladder(OAB)patients and the severity of OAB and to examine whether urine NGF could serve as a biomarker for the diagnosis of OAB.Method:From May 2012 to March 2015,61 female OAB patients were involved in this research(A group),while other 58 females without OAB symptoms and with normal OAB symptom score(OABSS)were selected as control group(B group).The enzyme-linked immunosorbent assay(ELISA)was used to detect the c...