Background: Kegel exercise role in strengthening the pelvic floor muscle in the treatment of prolapse and urinary incontinence and improve mobility and relieves painAim; The study aims to assess the knowledge and attitude and practices of kegel exercise among postnatal women in Al Madinah Al Munawarh, Saudi Arabia. Study design: This study utilized descriptive quantitative cross-sectional study design.Study Setting:The study was conducted of the postnatal ward in Maternity and Children's Hospital in Al Madinah Al Munawarh, Saudi Arabia. From December 2018 to April 2019. Sample: the study carried out among 152 of postpartum mothers. Tools that used in this study; Tool I:An interviewer-administered questionnaire in Arabic language was used in this study, it composed of three parts targeting the research objectives.Tool II:was concerned with knowledge of women regarding kegelexercises.Tool III:-concerned two parts: Part one: This part related to women's attitude towards kegel exercises. Part two: This part related to women's practices about kegelexercises.Results:the study found that 44.7% of the sample was in the age group 26-31 years old, 75.0% were multigravida, 85.5% had no miscarriage, 67.1% had vaginal delivery, and 50.0% have 1-3 children. 25% of the sample reported media as their source for information on kegel exercise. 62.7% of the sample had satisfactory knowledge. 72.4% were categorised as having 'somewhat favourable' overall attitudes towards kegel exercises. 57%of the mothers have not performed kegel exercise. 38.5% of the participants were correctly practisedkegel exercise in sitting or standing position. While 29.7% was correctly practisedkegel exercise in lying down position.Conclusion;Women's knowledge concerning the kegel exercise in the postnatal period is reasonable and their attitude was favourable, but the mothers had the poor practice of kegel exercises.Recommendation;Mothers should be informed and trained to kegel exercises properly by educational courses.