Introduction:Traditional Practices reflect values and beliefs held by members of a communityrnfor periods often spanning generations. Every social grouping in the world has specificrnTraditional Practices and beliefs,some of which are beneficial to all members, while others arernharmful to a specific group. Traditional Practices transmitted through tales, rituals, healingrnmethod and customary laws from generation to generation. Traditional Practices are more likelyrnemploy in developing countries where health facilities and health education are still behind thernrich of the majority of the people.Although Maternal Mortality Ratio in developing countries isrnstill 15 times higher than developed countries. This is because Traditional Practices are the mainrncontributing factors for maternal morbidity and mortality.rnObjective:Assessment of Traditional Practices during pregnancy, labour and delivery amongrnreproductive age group women and to identify factors related with them.rnMethods and Materials: The community-based cross-sectional study for the quantitave studyrnand indepth interview for the qualitative study was carried out fromNovember 2013-June 2014 inrnKersa Malimma District, South West Shoa Zone, Oromia Regional state.rnResult:The major Harmful Traditional Practices during pregnancy were intake of kosso with orrnwithout tape worm infestation, doing hard work. During labour and delivery the major HarmfulrnTraditional Practices identified were home delivery, shaking the women until placenta deliver,rncutting the umbilical cord with unsterilized razor blade, left the umbilical cord without tying,rnputting butter, vaseline and hair oil on umbilical stump (a short piece of umbilicus after the restrnof umbilical cord was cut),giving bath for the newborn immediately after delivery, women takingrnbath on day 4 or 5 afer delivery and drinking local alcohol while breast feeding. Massaging thernabdomen while the women were in labour and drinking â€œtelbaâ€ after delivery are TraditionalrnPracticesidentified but their effect is not well known and labelledas neutral practices. ThosernTraditional Practices that are indicated above have similarity with Traditional Practices describedrnin indepth interview.Family monthly income is associated with kosso intake, abortion anrneducational status of the women is associated with work during pregnancy and abortion isrnassociated with home delivery practice.rnConclusion:Ingeneral, Harmful Traditional Practices during pregnancy, labour and delivery arernhighly prevalent in this study area and the effects of some of the traditional practices are not wellrnknown. Extensive health education towards the eradication of the identified Harmful TraditionalrnPractices, further studies on the effects of Traditional Practices for those that are not well knownrnand similar studies in other areas is therefore recommended.