Objective: To determine the different oral findings in patients with renal insufficiency, chronic. Methods: A descriptive cross-sectional study was carried out that included 123 individuals who were diagnosed with renal insufficiency, chronic and underwent dialysis treatment at the Renal Services Unit of the Austro of the city of Cuenca-Ecuador. Once the study was approved by the Research Directorate of the Faculty of Dentistry (DIFO) of the University of Cuenca (code UC-DIFO-PROY-17-010), the oral cavity of the patients was examined to detect gingival enlargement non-inflammatory, hemorrhagic lesions (purpura and ecchymosis), uremic stomatitis and oral candidiasis. Data analysis was performed using the IBM-SPSS Statistics 20.0 program for Windows software (IBM Corporation, Armonk, NY, USA); the results were presented in simple distribution tables by calculating their percentage frequency. Results: Of the 123 subjects who participated in this study, 52% (n=64) were women, while 48% (n=59) were men. The mean age of the study population was 60.2 (SD: 14.6) years. Oral findings were described in 74% (n= 91) of patient’s with renal insufficiency, chronic. Among them were: non-inflammatory gingival enlargement (64.7%) (n=57), hemorrhagic lesions such as purpura and ecchymosis (57.7%) (n=71), uremic stomatitis (10.6%) (n=13) and oral candidiasis (8.1%) (n=10). Conclusion: Patients with renal insufficiency, chronic present important oral findings that should be identified and treated during dental practice.