<![CDATA[Breast cancer is a disease when normal cells are genetically mutated and become abnormal. Cells can divide and proliferate abnormally and invade breast tissue originating from the ductal epithelium or its lobules. Malignant disease caused by breast cancer is a significant problem faced by women around the world. In 2017, breast cancer experienced by women ranked firstin new cases, namely 252,710 cases. Every increase in age is thought to be one factor influencing breast cancer incidence due to long-term hormonal exposure. The study’s objective was to describe the age and stage levels of the patients with breast cancer at Hasan Sadikin Hospital Bandung, employing descriptive method. The collected data was obtained from the medical records of breast cancer patients recorded between January to December 2018 at the Surgical Oncology Unit of Hasan Sadikin Hospital Bandung. Sampling was carried out using a total sampling technique. The results showed there were 414 patients with breast carcinoma. Breast cancer was primarily found at the age of 36-50 years in 52.7% of cases. The most prevalent stage of breast cancer is stage III B, with 41.1%. Breast cancer incidence increases with age, and the high proportion in stage III is due to the lack of information and awarenessabout early detection and a delay in seeking treatment. In order to reduce the number of breast cancer cases, it is recommended that related regional health installations/facilities provide further education and information regarding the dangers of breast cancer for women. DOI : 10.35990/amhs.v2n1.p1-8 REFERENCE Kementerian Kesehatan RI. (2015). Pusat Data dan Informasi Kesehatan: Stop Karsinoma. Infodatin-Karsinoma, 1–82. Hall, J. E., & Guyton, A. C. (2014). Guyton dan Hall Buku Ajar Fisiologi Kedokteran (edisi ke-12). Laktasi. Elsevier, Singapore, hlm. 973–978. Mescher, L. A. (2011). Histologi Dasar Janqueira: Teks dan Atlas (edisi ke-12). 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