There was a significant improvement in the foot self-care knowledge of patients who received the study's educational program immediately after the education (T2) with mean score of 23.15 ± 2.47 points and remained at 22.3 ± 2.22 points one month later (T3) in compared with 16.25 ± 3.86 points before the program (T1) (p<0, 001).