Urinary problems secondary to benign prostatic hyperplasia (BPH) are found in 20 to 25% of the population of men over 50 years of age. This is thus a public health problem with a number of diagnostic, therapeutic and economic facets. The severity of the problem is assessed by the score obtained on the IPSS, a well-known and recognised questionnaire. OBJECTIVE: As part of the growing importance attached to the care giver, it is interesting to evaluate the consequences of this masculine pathology for the spouse. METHOD: As part of a cohort study, the GP gave the patient 2 PFM (Patient Family Measurement) self-questionnaires for himself and his spouse. For the analysis, 357 patient questionnaires and 316 spouse questionnaires were used. The sexuality of the patient was measured by the -IIEF- International Index of Erectil Function. Spouses were asked about their Sexual Desire -SD- and Overall Satisfaction -OS-. RESULTS: For BPH patients, all the IIEF dimensions are deteriorated according to the severity expressed by the IPSS score. This is particularly true for the SD (52.8- 46.6 - 35.2) and OS (69.6 - 57.3 - 40.4) dimensions. For the spouses who answered the questionnaires, the SD lack or the overall dissatisfaction are directly correlated with the IIEF score expressed by their partners for the corresponding dimensions p<0.005 - Spouse Sexual Desire: Nil to Weak: IIEF DS Dimension Score: 42.7 - Medium to High: IIEF DS Dimension Score: 76.0 - Spouse Satisfaction: Dissatisfied: IIEF OS Dimension Score: 46.1 - Divided to Satisfied: IIEF OS Dimension Score: 67.2. CONCLUSION: The high spouse questionnaires' response rate showed the interest and involvement of spouses in their husband's disease. BPH patients sexuality is deteriorated according to the pathology severity, spouses express this deterioration in the same way.