The effectiveness of a nail-biting prevention program among primary school students.

The program significantly reduced the nail-biting rate among primary school students. The nurse that implement this program will be able to do a comprehensive evaluation of students' nail-biting habits, perform solution-focused interventions, and prevent advanced complications that might develop in connection to nail-biting. Thus, the effectiveness of nursing implementations will improve in the prevention of nail-biting habit, early diagnosis, and changing students' habits. "Do Not Bite Your Nails, Cut Your Nails" program can be applied again in different schools.