Hormone therapy with tamoxifen or estrogens can act on cells all over the body and may increase the chance of getting cancer of the uterus. A doctor should be seen for a pelvic examination every year. Any vaginal bleeding, other than menstrual bleeding, should be reported to a doctor as soon as possible. Even if the doctor removes all the cancer that can be seen at the time of the operation, the patient may be given radiation therapy, chemotherapy, or hormone therapy after surgery to try to kill any cancer cells that may be left. Therapy given after an operation when there are no cancer cells that can be seen is called adjuvant therapy.
Biological therapy tries to get the body to fight cancer.
It uses materials made by the body or made in a laboratory to boost, direct, or restore the body's natural defenses against disease. This treatment is currently only being given in clinical trials. Bone marrow transplantation is a type of treatment that is being studied in clinical trials. Sometimes breast cancer becomes resistant to treatment with radiation therapy or chemotherapy. Very high doses of chemotherapy may then be used to treat the cancer.