Objective To explore the clinical significance of nail involvement in generalized pustular psoriasis( GPP).Methods We retrospectively analyzed the clinical data of 206 cases of GPP who were hospitalized in Institute of Dermatology,Chinese Academy of Medical Sciences & Peking Union Medical College from January2000 to December 2013 and compared the difference on the general information,laboratory results,treatment and disease prognosis of those with nail involvement and without. Results Of these patients,male...