Erectile dysfunction: Proposed definition and staging for early diagnosis

Table 1 Clinical staging of erectile dysfunction and classification

Stages of ED	Description	Classification of ED	Sexual performance
ED0	Normal rigidity, able to penetrate normally	Normal	Normal
ED1	Reduced rigidity, able to penetrate normally	Early ED	Not interfering with sexual performance
ED2	Reduced rigidity, able to penetrate with difficulty, always	Mild ED	May or may not interfere with sexual performance
ED3	Reduced rigidity, able to penetrate with difficulty, most of the time
ED4	Reduced rigidity, able to penetrate with difficulty, rarely	Moderate ED	Interfering with sexual performance
ED5	Markedly reduced rigidity, unable to penetrate	Severe ED	Unable to perform penetrative sexual activity
ED6	Flaccid, unable to penetrate
ED7	Completely flaccid, unable to penetrate

ED: Erectile dysfunction.