Aim: To describe the skin areas most often affected by intertrigo, the clinical severity and duration of intertrigo and possible risk factors.Materials and methods: Secondary analysis of data from 2013 to 2016 collected by the International Prevalence Measurement of Care Quality in Dutch hospitals, care homes and community care.Results: In total, n = 7865 (mean age 80.1 years) subjects were included in this analysis. The inguinal, breast and gluteal cleft skin areas were most often affected by intertrigo. The skin was often inflamed but not eroded. Strongest associations between intertrigo at inguinal skin and diabetes mellitus (OR 1.8; 95% CI 1.1-3.1), intertrigo at sub mammary folds and urinary incontinence (OR 1.6; 95% CI 0.9-2.9) and between intertrigo at gluteal cleft and urinary incontinence (OR 2.9; 95% CI 1.4-5.2) were observed.Conclusion: The inguinal region, sub mammary folds and gluteal clefts are most often affected by intertrigo. Female sex, urinary incontinence and high BMI seem to enhance intertrigo risk at all of these skin areas.