Background: Academic track record analysis is essential for evaluating the training of students and the structure of higher education study programs, which allows diagnosing and preventing educational lag and school dropout.Objective: To analyze the differences in academic track records of UNAM health sciences undergraduate students from generations 2001 to 2016.Material and methods: Study of real cohorts; graduation and lag rates were calculated.ANOVA was used to contrast the graduation rates between campuses by undergraduate program and time.To identify critical periods, survival functions were used with Kaplan-Meier's method.Results: The lowest percentages of lag were observed in nursing and medicine students; nursing students had the highest graduation rates, especially at Zaragoza campus; dentistry students had the lowest graduation rates and the highest dropout and lag rates.Women showed higher graduation rates and lower risk of dropout and lag.Conclusions: Nursing, medicine and psychology undergraduate students at Zaragoza and Iztacala campuses, with modular programs, achieved the highest graduation percentages and the lowest dropout and lag rates.