What is the cause of low back pain after chemotherapy for breast cancer?

What causes low back pain after chemotherapy for breast cancer?

The causes of low back pain after chemotherapy for breast cancer include posture factors, drug factors, pathological factors, etc., as follows:

1. Posture factors

Most breast cancer patients have poor physical condition after chemotherapy and may need to stay in bed for a long time. If the bed posture is not good, it may cause waist muscle strain, thus causing low back pain symptoms.

2. Drug factors

The symptoms of low back pain after chemotherapy for breast cancer may be caused by adverse reactions of chemotherapy drugs, because chemotherapy drugs not only kill cancer cells, but also damage normal cell tissues, so they may cause related adverse reactions, such as low back pain, nausea, vomiting, anorexia, etc. Some breast cancer patients experience a decrease in white blood cells during chemotherapy. In this case, "whitening injections" are usually used, such as recombinant human granulocyte colony stimulating factor, pegylated recombinant human granulocyte stimulating factor, etc. The medication may cause joint pain, so it can manifest as low back pain.

3. Pathological factors

If the patient is in the late stage of breast cancer and bone metastasis occurs during chemotherapy, when the cancer cells metastasize to the lumbar spine, they may damage local bones and cause low back pain.