| Diabetic Neuropathy (DPN) |
Burning, prickling ("pins and needles"), tingling, gradual numbness |
Noticeably worse at night or when resting under covers |
Symmetric stocking pattern; often starts in both sets of toes; linked to elevated blood glucose |
| Small-Fiber Neuropathy |
Sharp burning, skin sensitivity (allodynia), prickling heat |
Continuous or flared by light sheets/blankets touching the skin |
Large-fiber reflexes and strength remain normal, but temperature and pain fibers are irritated |
| Tarsal Tunnel Syndrome |
Localized burning, aching, numbness radiating along the sole |
Flared by prolonged standing or walking; throbs at rest |
Often unilateral; mechanical compression of the posterior tibial nerve near the inner ankle |
| Athlete’s Foot (Tinea Pedis) |
Surface burning, intense itching, stinging sensations |
Worse after removing enclosed, sweaty shoes and socks |
Visible peeling, scaling, cracking, or redness between toes or across the bottom of the foot |
| Mechanical Foot Fatigue |
Dull throbbing heat, soreness, tired foot arch and sole |
Directly following long work shifts or unsupportive shoes |
No underlying nerve lesion; quickly eases with physical rest, cool air, and foot elevation |
| Circulatory Issues (e.g., CVI) |
Warmth, heavy sensation, fullness, mild aching |
Evenings after long periods of sitting or standing upright |
Often accompanied by mild ankle puffiness (edema); relieved by elevating feet above heart level |