8 patients and 2 urologists will be interview to explore the educational needs and to create, expand and validate an interview guide. Exploratory interviews with urologists will address information given to patients on post radical prostatectomy sexual dysfunction, prescribing practices, monitoring therapy (PDE5 inhibitors, IIC, Vacuum), and patients adverse effects management.
Focus groups will be conduct to :
* Identify the representations associated with erectile dysfunction
* Identify the representations related to treatments for erectile dysfunction.
* Score patient knowledge about treatments and their managements.
* Identify common or original strategies to improve adherence, reduce side effects and overcome the disadvantages of the treatments.
* Assessing the needs and expectations of patients
