Background: Breast engorgement is defined as the swelling and distension of the breasts. The common causes of engorged breasts are congestion of fluid and blood in the breast. Adequate management of engorgement is important for successful long-term lactation. The goal of treatment of breast engorgement is to relieve discomfort and control swelling. Objectives: The Investigator conducted the study with an objective to assess the effectiveness of breast massage in reducing breast engorgement and pain among postnatal mothers admitted regional hospital, Una. Methodology: A Quantitative approach and quasi experimental research design was adopted to conduct the study. Sample of 50 postnatal women selected in postpartum ward in RH Una by purposive sampling techniques. The data is collected by semi structured questionnaire and universal pain assessment tool. The collected data was analysed and interpreted by using descriptive and inferential statistics. Result- This study revealed that the mean of Breast engorgement pre- test in experimental group among postnatal mother 4. 16 . The mean percentage is 69. 3% and the SD is 1. 43. The mean of Breast engorgement pre- test in control group among postnatal mothers is 4. 12 ,The mean percentage is 68% and SD is 0. 745, The mean of breast pain pre- test in experimental group among postnatal mother 4. 79 ,The mean percentage is 49. 7% and the SD is 2. 026 . The mean of breast pain pre- test in control group among postnatal mother 4. 28, the mean percentage is 42. 8% and SD is 1. 59474, The mean of pre- test in experimental group among postnatal mother 1. 08 , the mean percentage is 30%and the SD is 0. 8164. The mean of pre- test in control group among postnatal mother 3. 24, the mean percentage is 54% and SD is the mean of post - test in experimental group among postnatal mother is 1. 08, The mean percentage is 10. 8 % and the SD is 1. 2219 .The mean of post- test in control group among postnatal mother 4. 64, the mean percentage is 46. 4 % and SD is 1. 97230. Conclusion- The Study concluded that the massage shows good result on reliving engorgement and pain.