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Objective: Total of 1,896 cases of drugs combined with audio-visual stimulation induced penile erection hardness monitoring were summarized,the results of cases with no correlation accompaniment diseases and associated with diseases were compared.Methods: Total of 1,896 cases Rigiscan exam were underwent in our center,the patients were aged 18-72 years old(average 41.3 years),courses of disease were 2 months to 23 years,21 cases had no sex life history,those who no correlated accompaniment disease were 1,067 cases(Ⅰ group),those who with correlated accompaniment disease were 829 cases(Ⅱ group).Methods of operation as below: oral sidinafil 100 mg,60 min later,by means of Rigiscan to detect the baseline value of the glans penis and the base penis in peace and quiet state,utilizing spectacles visual-auditory sexual stimulation appearance to detect the erection condition of the penis for 1 hour,the hardness of the glans penis and the base penis ≥70%,expansion diameter >20 mm,persistence time >15 min would be considered effective erection,the hardness of the glans penis and the base penis ≥40%and <70%,expansion diameter >10 mm,persistence time >10 min would be considered apart erection,rest was no erection.Results: All the subjects were collected effective erection 1,131 cases,the constituent ratio was 1,131/1,896(59.6%),part effective erection took place in 495 cases,the constituent ratio was 495/1,896(26.1%),no erection took place in 270 cases,the constituent ratio was 270/1,896(14.3%).Among Ⅰ group effective erection was collected in 786 cases,the constituent ratio was 786/1,067(73.7%),part effective erection took place in 198 cases,the constituent ratio was 198/1,067(18.6%),no erection took place in 83 cases,the constituent ratio was 83/1,067(7.7%).Among Ⅱ group effective erection was collected in 345 cases,the constituent ratio was 345/829(41.6%),part effective erection took place in 297 cases,the constituent ratio was 297/829(35.8%),no erection 187 cases,the constituent ratio was 187/829(22.6%).Chi-square criterion eventuate: effective erection in Ⅰ group was significantly higher than that of Ⅱ group,opposite,part effective and no erection in Ⅱ group was significantly higher than that of Ⅰ group.Conclusions: The effective erection of cases with no correlation accompaniment diseases was significantly higher than that of related with the diseases,suggesting a correlation with diseases and erectile dysfunction(ED)occurred more easily than previous health.