BACKGROUND: Learning about menstruation is a vital aspect of health education for adolescent girls.
PURPOSE: To evaluate effect of guideline instructions on preparatory school girls regarding menstrual health habits.
DESIGN: A quasi-experimental design.
SETTING: The study was conducted in three female preparatory schools at Benha city. The schools are namely; Ans Ebn Malk, Mostafa El-sayed and Maktabot and Monshaat Badawy schools.
SAMPLING: 100 preparatory school girls from 2nd grade preparatory school student, after menarche approximately two year and free from medical diseases. Multi-stage random sample.
50% of female preparatory schools in Kaliobyia have been randomly chosen. The researcher attempted to select randomly 50% of the classes from the selected schools according the protocol. But the researcher selected all classes from the selected schools to complete the sample size, then; the researcher selected students according to previously mentioned criteria of inclusion.
TOOLS: The tools of data collection were self administrated questionnaire sheet to assess girl's knowledge, and practices about menstrual health habits, modified likert scale to assess girl's attitude regarding menstrual health habits and Observation checklist.
RESULTS: The present study showed that, there was a highly significant difference between each individual total score before and after implementation of program for knowledge form "7.84 to 57.78 " and practices as regard" 34.38 to 68.50". Attitude studied sample changed positively significant with implementation of program, P-value was less than 0.001.
CONCLUSION AND RECOMMENDEDATIONS: Before applying the educational program, majority of studied sample had poor knowledge, practices and misconception about menstruation, menstrual health habits while after implementation of program Applied guideline instructions succeeded to a great extent in improving girl's knowledge, attitude and practices regarding menstruation, menstrual health habits. School libraries should be supplemented with Arabic booklet concerning menstruation and menstrual health habits. Girls’ school nurses should be prepared to guide girls about healthy practices during menstruation.
Key words: Menstruation, menarche, guideline, health habits.