The claim that your feet are a “blood sugar meter” is misleading. Your feet cannot measure blood sugar, but diabetes can affect the feet over time, especially if blood sugar has been elevated for years. Nerve damage and poor circulation are the main reasons.
12 foot symptoms that can be associated with diabetes
- Numbness or reduced feeling
- Tingling or “pins and needles”
- Burning pain, especially at night
- Sharp or shooting pains
- Loss of temperature sensation
- Slow-healing cuts or sores
- Foot ulcers
- Frequent skin or nail infections
- Dry, cracked skin
- Changes in skin color or temperature
- Swelling of the feet or ankles
- Foot deformities, such as changes in toe shape or arch, due to nerve damage
These symptoms do not automatically mean you have diabetes. They can also be caused by vitamin deficiencies, circulation problems, nerve disorders, injuries, or other medical conditions.
Other common signs of diabetes
- Increased thirst
- Frequent urination
- Blurred vision
- Fatigue
- Increased hunger
- Unexplained weight loss
- Recurrent infections
If you have diabetes
Check your feet every day for cuts, blisters, redness, or swelling. Seek prompt medical care if you notice:
- A wound that isn’t healing
- Signs of infection (redness, warmth, pus)
- A black or blue area on the foot
- Sudden loss of feeling or severe pain
The only reliable way to know whether you have diabetes is through blood tests, such as a fasting blood glucose test or an HbA1c test. If you’re experiencing persistent foot symptoms or other signs of diabetes, it’s a good idea to discuss them with a healthcare professional.
