Breast cancer is a significant cause of death in young women with aggressive tumors. A new model using the breast cancer public staging database was developed to predict survival outcomes for younger patients. The model, based on machine learning, showed that older patients had more comorbidities than younger patients. Tumor stage was the main factor in predicting mortality for both age groups, with COPD being significant only in younger patients. This model can help identify high-risk young female patients with breast cancer who may need more aggressive treatment.