There is no clear time regulation on how long it takes for bone metastasis to occur in hormone-dependent breast cancer, and the decision should be made according to the severity of breast cancer. Breast cancer is a malignant tumor caused by uncontrolled proliferation of epithelial tissues in the breast. In the early stage, it will cause lumps in the breast area, and generally there is no bone metastasis, and timely treatment can effectively control the condition. Although bone metastasis occurs in the late stage, there is no clear time to judge, and the decision will be made according to the patient’s daily treatment. Timely treatment can effectively control the condition and avoid the spread of cancer cells.