When is chemotherapy recommended for metastatic breast cancer?

Metastatic breast cancer has spread beyond the breast or nearby lymph nodes. Treatment is usually planned as an ongoing strategy to control the cancer, ease symptoms and support quality of life. Your oncology team considers the cancer's hormone-receptor and HER2 results, where it has spread, how quickly it is changing, medicines you have already received, your general health and your preferences.

Chemotherapy can be given alone or alongside another cancer treatment. It may be chosen when a tumour is growing quickly, when organ function is threatened, or when targeted or hormone-based treatment is unlikely to help. The plan can change if scans, symptoms or side effects change.

Bring a list of current medicines, supplements, allergies and previous cancer treatments. Ask which benefit the team expects, how treatment will be delivered, how often appointments occur, and how symptoms will be monitored. Discuss fertility, pregnancy, work, travel and support at home when relevant.

Before treatment, the team may check blood counts, kidney and liver function, and other findings that affect drug selection. Report new symptoms promptly and keep a record of fever, pain, appetite, bowel changes or numbness so the team can adjust supportive care.

Contact your oncology service urgently for a fever or chills during treatment, especially if you have been told that infection risk is increased. Seek emergency care for severe breathing difficulty, chest pain, confusion, fainting, uncontrolled bleeding or sudden weakness. New severe back pain, leg weakness, or loss of bladder or bowel control also needs immediate assessment because spinal or nerve pressure can require urgent treatment.

Which features of my cancer make chemotherapy appropriate now? What other treatment options fit my results? How will we judge whether it is helping? Which side effects should I report the same day, and whom should I call outside clinic hours?