The most common kind of cancer in women is breast cancer, which is treatable in 70 to 80 percent of individuals with early-stage, non-metastatic illness.With currently available treatments, advanced breast cancer with distant organ metastases is regarded as incurable.The human epidermal growth factor receptor 2 (HER2, encoded by ERBB2), the oestrogen and progesterone receptors, and/or BRCA mutations are some of the biological characteristics that make breast cancer a diverse illness.Different treatment plans are used for various molecular subtypes.Breast cancer treatment is interdisciplinary and comprises both systemic therapy and locoregional therapy (surgery and radiation therapy).Endocrine therapy for disease that is hormone receptor-positive, chemotherapy, anti-HER2 therapy for disease that is HER2-positive, bone stabilising medications, poly(ADP-ribose) polymerase inhibitors for BRCA mutation carriers, and, more recently, immunotherapy are examples of systemic therapies.Future treatment paradigms for breast cancer aim to personalise care as well as to de-escalate and escalate treatment based on tumour biology and early therapy response.Equal access to therapeutic advances around the world continues to be the biggest issue facing breast cancer therapy globally, after new treatment improvements.