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.
Diabetes can cause two problems that can affect your feet: 1  Diabetic neuropathy. 2  Uncontrolled diabetes can damage your nerves. 3  If you have damaged nerves in your legs and feet, you might not feel heat, cold, or pain. 4  This lack of feeling is called sensory diabetic neuropathy ..