Diabetic Foot Pain: What Causes it and What Does it Mean?

3. Circulation Problems

In addition to peripheral neuropathy, consistently high blood sugar levels can cause circulation problems as they damage the arteries, capillaries, and veins. Diabetes typically affects the arteries in the legs, particularly in the knees and calves. Because this cuts off blood flow to the feet, the tissues become starved for oxygen, which is often extremely painful. Some people with diabetes describe the pain as their feet being “strangled.” As the flow of blood slows, the veins in the feet become swollen and painful to the touch. Eventually, the veins may even cause ulcers that lead to infections.