Mammographic breast density is well known and one of the most important non-modifiable risk factors of breast cancer, which increases breast cancer risk by about five times for those with percent density ≥ 75% compared to women with percent density ＜5%.The present study was done to characterize the breast density and pattern of presentation in breast cancer patients. Material & methods: Present study was conducted in the Department of General Surgery and Radio diagnosis IGMC Shimla from 1st July 2018 to 30 June 2019. A total of 30 patients of breast cancer were included and evaluated in the present study. Results: The mean age of patients was 55.4±10.9 years. In our study, maximum 12 patients were in the age group of 40-50 years followed by 9 patients in age group of 51-60 years. Among all 30 patients, 28 patients complained of breast lump, 1 patient presented with nipple discharge and 1 patient was subjected for screening mammography. Among all 30 cancer patients, 5 patients (16.7%) had breast density of Type A, while majority of patients i.e 21patients (70%) had breast density of Type B and 4 patients (13.3%) had breast density of Type C. Among all 30 breast cancer patients, 10 patients (i.e.33.3%) were BIRADS 4, 14 patients (46.7%) were BIRADS 5 and 6 patients (20%) were BIRADS 6. Among all 30 cancer patients, 27 patients were diagnosed with duct cell carcinoma (90%) while 2 patients were reported as lobular carcinoma (6.7%) and 1 patient was diagnosed with tubular carcinoma (3.3%). Conclusion: Maximum patients in this study were in the age group of 40-50 year. The most common presenting complaint in breast cancer patients was breast lump. Most patients had higher BIRADS 5&6 and had breast density of Type B. Majority of the patients were reported as Duct Cell Carcinoma.