1 Interchangeable needle kits are exactly what they sound like--a set of knitting needle tips, and a set of cords of varying length that can attach and detach from the tips to create many different combinations of needle sizes and cord lengths.
Poor circulation (blood flow) can make your foot less able to fight infection and to heal. Diabetes causes blood vessels of the foot and leg to narrow and harden. You can control some of the things that cause poor blood flow. Don't smoke; smoking makes arteries harden faster.
How can diabetes affect my feet? Chronically high blood sugar (glucose) levels can be associated with serious complications in people who have diabetes. The feet are especially at risk. Two conditions called diabetic neuropathy and peripheral vascular disease can damage the feet (and other areas of the body) in people who have diabetes.