Back ground: Brest self-examination is most important skill in prevention of breast cancer and by performing it regularly women can save themselves from getting this disease and death can prevented too. It is very simple, requires no instrument and easily performed by every woman. Early diagnosis is important for effective treatment and long term survival in breast cancer. Objectives: 1. To assess the pretest and post test scores of knowledge regarding breast self-examination among Women 2. To assess the effectiveness of video assisted teaching on Breast Self-Examination among women on breast self-examination. 3. To associate the pre test scores of knowledge regarding breast self-examination among women with socio demographic variables. Methodology: An evaluative study was done by using one group pre and post test design with sample size of 60 women, sample were selected by using simple random Sampling technique, Semi structured questionnaire were used to assess the pre test level of knowledge among women and planned teaching programme on breast self-examination was provided and post test level of knowledge was assessed. Results: Paired t test calculated value was 40.125 at P <0.05 whereas table value was 2.00 at p<0.05. Conclusion: The study revealed that women were improved their level of knowledge on breast self-examination with video assisted teaching.