This symptom may start intermittently but can become persistent if blood sugar remains uncontrolled. Early recognition is essential because nerve damage can progress to loss of sensation or pain.
- Commonly felt in toes, soles, or the entire foot
- May worsen during the night
- Can precede more severe complications like foot ulcers
If you experience tingling frequently, it is advisable to have your blood sugar levels evaluated and discuss nerve function testing with your healthcare provider.
2. Numbness
Numbness in the feet or toes means a loss of normal sensation, often caused by advanced nerve damage from prolonged high blood sugar. Unlike tingling, numbness feels like a dull or absent sense of touch, making it difficult to feel pain, temperature changes, or pressure.
This raises the risk of unnoticed injuries or infections since you might not sense cuts, blisters, or ulcers developing. Diabetic peripheral neuropathy is the usual culprit, and it tends to affect both feet symmetrically.
- May begin in the toes and spread upward
- Can make walking unstable due to loss of balance cues
- Increases risk of serious foot infections and ulcers
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