Often, PVD or circulation problems in the lower extremities present as pain, numbness, coldness, or color change of the skin of the legs and feet. The pain is often worsened with exercise or activity, which is called claudication. It may also present as ulcers on the skin that are not healing properly or not healing at all. It is important to look out for these symptoms and inform your doctor because untreated PVD can lead to life-threatening infections or the loss of your limbs through amputation.