Continued clotting can lead to increased swelling. The swelling can interfere with blood flow. This complication is called phlegmasia alba dolens. It causes the skin to turn white. Phlegmasia alba dolens may lead to tissue death (gangrene) and the need for amputation.
When to Contact a Medical Professional
See immediate medical help if an arm or leg is severely swollen, blue, or painful.
Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.