OBJECTIVE : To assess the prevalence and the management of the lower urinary tract dysfunction (LUTD) in institutionalized handicapped adults. METHODS : Descriptive transversal observational study. Epidemiological study. RESULTS : In this study realized in 150 residents of 6 nursing homes for adult, the prevalence of LUTD in institutionalized handicapped adults was 88.67% (133/150). This prevalence was 91.36% (74/81) for women versus 85.51% (59/69) for men, (P=0.260); 93.33% (14/15) in medical housing units [foyer d'accueil médicalisé (FAM)] versus 88.15% (119/135) in specialized housing units [maison d'accueil spécialisé (MAS)], (P=1); 80% (52/65) for those who walked without technical support, 89.47% (17/19) for those who walked with technical support, 98.08% (51/52) for the wheelchair users who were not able to walk, and 92.86% (13/14) for those who were not able to walk or to use wheelchair, (P=0.004); 69.81% (37/53) for those who were able to signal the need to void versus 98.97% (96/97) for those who were not able, (P=0.0000003); 76.92% (50/60) for those who were able to realize the transfers independently, versus 97.65% (83/85) for those who were not able, (P=0.0002); 67.39% (31/46) for those who could dress and undress by themselves versus 98.08% (102/104) for those who could not, (P=0.0000002); 77.27% (17/22) for water intake>2L, 91.67% (55/60) between 1.5 and 2L, 87.5% (49/56) between 1 and 1.5L, and 100% (12/12) for water intake<1L, (P=0.170). The LUTD were more frequent in people with physical disability (OR=10.70[1.53-75.09], P=0.017), in those with mental disability (OR=5.85[1.39-24.67], P=0.016), and in those with urological comorbidity (OR=9.70[1.25-75.55], P=0.03). For the management of the LUTD, the prevalence of expert medical advice was 9.77%, 24.81% (33/133) for the further examination, 16.54% (22/133) for rehabilitation treatment, 6.77% (9/133) for drug treatment, 2.26% (3/133) for surgical treatment, and 82.71% (110/133) for medical device. CONCLUSIONS : In this study, the prevalence of LUTD in institutionalized handicapped adults was 88.67%. METHODS : 4.