A number of strategies have been proposed to minimize potential stress to the lymphatic system of an at-risk limb (the limb on the same side of the body as the surgical removal of lymph nodes) among women who have had surgery for breast cancer. One of the common recommendations has been the avoidance of arm constriction by blood pressure cuffs or tourniquets on the affected side. Increased venous pressure as a result of excessive constriction may contribute to increased lymph production and precipitate swelling of the affected limb. The effects of discontinuing this type of risk reduction behavior is being examined in patients at risk for or with lymphedema.