A tingling or “pins and needles” sensation that occurs briefly after sitting awkwardly is usually harmless.
Repeated numbness, tingling, burning, unusual sensitivity, or weakness in the feet is different.
Long-term high blood glucose can damage peripheral nerves. Diabetic peripheral neuropathy commonly affects the feet and legs and can cause tingling, pain, numbness, weakness, or reduced sensation.
This can become particularly noticeable during walking because pressure is repeatedly placed on the feet.
### Why loss of sensation matters
Reduced sensation can make it harder to notice:
