There is no good way to predict who will and will not develop lymphedema. It can occur immediately after surgery, months or even years later. The potential for developing lymphedema remains throughout a woman's lifetime. With care, lymphedema can sometimes be avoided, or if it develops, kept under control. Injury or infection involving the affected arm or hand can contribute to the development of lymphedema or aggravate existing lymphedema, so, preventive measures should focus on protection of the arm and hand.
Most doctors recommend that women avoid having blood drawn from the affected arm.
One of the first symptoms of lymphedema may be a feeling of tightness around the arm or hand, on the same side that was treated for breast cancer. Any swelling, tightness, or injury to the arm or hand should be reported promptly to your doctor or nurse.