Dear lyleclaude: Chemotherapy commonly causes disruption of
normalNormal saline flush menstrual cycles in premenopausal
womenWomen's way. Although
tamoxifenTamoxifen
Tamoxifen citrate, a hormonal treatment for breast cancer, may increase the risk of bleeding in postmenopausal women, vaginal bleeding is unlikely to be a side effect of either chemotherapy or Herceptin. Most causes of vaginal bleeding are benign (non cancerous), however, unexplained postmenopausal vaginal bleeding warrents gynecologic evaluation.