Will breast cancer spread after chemotherapy?

Breast cancer patients will also have metastasis during intravenous chemotherapy, but the probability is very small, because if breast cancer patients choose intravenous chemotherapy after surgery, they will generally be accompanied by lymph node metastasis or late clinical stage. Malignant tumor is characterized by easy metastasis and recurrence. The common modes of metastasis are lymph node metastasis and hematogenous metastasis. For breast cancer, the most common metastatic sites are axillary lymph nodes, thoracic lymph nodes and subclavian lymph nodes, and the metastatic organs include liver and lung tissue. Intravenous chemotherapy can kill tiny metastases and malignant tumor cells that may exist in the blood. During chemotherapy, we should pay attention to the adverse reactions of drugs, and give drugs to protect liver, kidney and gastrointestinal mucosa regularly to prevent related complications.