Sexuality is an essential dimension of quality of life and is frequently impaired in patients with end-stage chronic kidney disease undergoing hemodialysis. Sexual dysfunctions-including erectile dysfunction, reduced sexual desire, and difficulties with arousal or orgasm-are highly prevalent in this population. These disorders have multifactorial origins, involving hormonal disturbances, comorbidities, treatment-related side effects, chronic fatigue, and the psychological and relational impact of long-term illness.

Despite their frequency, sexual health issues are rarely addressed in routine dialysis care. This is largely due to time constraints during consultations, insufficient training of healthcare professionals, and persistent social and cultural taboos. In addition, the existing scientific literature remains limited, often outdated, and predominantly focused on male patients. Data concerning women, sexual diversity, body image, and couple-related aspects are scarce. Standard kidney disease-specific quality-of-life instruments, such as the KDQOL questionnaire, provide only a minimal assessment of sexuality, with a single item related to sexual desire.

The aim of this study is to provide a contemporary and comprehensive assessment of the impact of dialysis on sexual quality of life. By documenting sexual function and sexual complaints in patients undergoing dialysis, this study seeks to improve understanding of patients' experiences and to facilitate communication between patients and healthcare professionals. Ultimately, the findings are intended to support better integration of sexual health into routine nephrology care and to contribute to improved clinical practices in the field of sexual health.

This study is designed as a cross-sectional survey conducted among patients undergoing dialysis at the Groupe Hospitalier Privé Ambroise Paré-Hartmann in the Paris area. Eligible patients are informed about the study during a dialysis session by a healthcare professional (dialysis nurse, nephrologist, or physiotherapist specialized in sexology). Participants complete a self-administered questionnaire during their dialysis session, including the Male Sexual Health Questionnaire (MSHQ) for men and the Female Sexual Function Index (FSFI) for women. Additional questions addressing medical history and body image perception are included. The estimated completion time for the questionnaire is approximately 20 minutes.

Inclusion Criteria:

• Patient > 18 years,
• Treated with chronic dialysis (hemodialysis or peritoneal dialysis) for at least 6 months.

Exclusion Criteria:

• Major cognitive or psychiatric disorders that make understanding or completing the questionnaire difficult.
• General health condition not allowing participation without significant discomfort or excessive fatigue.
• Opposition by the patient.

Adults treated with chronic dialysis (hemodialysis or peritoneal dialysis).