Burning Feet at Night: Causes 2026 | DPM

Can vitamin deficiency cause burning feet at night?

Yes — B12 deficiency is a common and reversible cause of burning feet. B12 is needed for myelin sheath maintenance around nerve fibers; deficiency causes demyelination and neuropathic pain. People at highest risk: vegans and vegetarians (B12 only from animal products), people over 60 (reduced gastric acid for B12 absorption), those taking metformin (known to reduce B12 absorption), and anyone with pernicious anemia. A simple blood test checks B12 levels. If low or low-normal, supplementation often significantly improves burning within 2-3 months.

Is burning feet at night serious?

Burning feet at night is always worth investigating but is not always serious. In many cases, a treatable and reversible cause is found (B12 deficiency, hypothyroidism, athlete’s foot, medication side effect). In others, it represents established peripheral neuropathy that requires management to prevent progression. The most important thing is not to ignore it — neuropathy that is not treated continues to progress, eventually causing numbness and foot ulcer risk (particularly dangerous in diabetes).

Why do my feet burn at night but not during the day?

Nocturnal burning is worse for several reasons: there are no distracting activities to occupy your attention; you become more aware of body sensations at rest; lying down reduces gravity-dependent blood pooling and changes blood flow to the extremities; and body temperature drops slightly, which can alter nerve firing thresholds. For neuropathic pain specifically, there is a circadian pattern — central pain modulation is less effective during sleep, allowing more pain signals through.

Peripheral Neuropathy — Most Common Cause

Peripheral neuropathy — damage to the small nerve fibers in the feet — is the most common cause of nocturnal burning feet. The damaged nerves send abnormal pain signals even without any mechanical stimulus (called neuropathic pain or dysesthesia). Diabetic peripheral neuropathy is the most common specific type, affecting 50-60% of people with long-standing diabetes. Other causes of neuropathy producing nocturnal burning include: chronic alcohol use, B12 or B1 deficiency, chronic kidney disease, hypothyroidism, autoimmune conditions (Sjögren’s syndrome, lupus), chemotherapy-induced neuropathy, and idiopathic small fiber neuropathy (no identifiable cause).

The burning from neuropathy is typically bilateral (both feet), worse at night, associated with tingling and sometimes electric shock sensations, and may progress upward toward the ankles and calves. See our comprehensive neuropathy in feet relief guide for detailed information on diagnosis and treatment.

Small Fiber Neuropathy

Small fiber neuropathy (SFN) specifically affects the Aδ and C nerve fibers responsible for temperature sensation and autonomic function. It can cause intense burning pain with completely normal nerve conduction studies (because NCS tests large fibers, not small fibers). Diagnosis requires a skin punch biopsy measuring intraepidermal nerve fiber density. SFN can be idiopathic (no cause found) or associated with diabetes, autoimmune conditions, or mutations in sodium channel genes. Treatment focuses on pain management with gabapentin, duloxetine, or low-dose naltrexone.

Erythromelalgia

Erythromelalgia is a condition where the feet become hot, red, and severely burning — triggered by warmth, exercise, or being in bed under covers. Cooling the feet (cold water, ice, cold floor) provides dramatic relief. It’s rarer than neuropathy but produces classic symptoms. Primary erythromelalgia is caused by sodium channel mutations; secondary forms are associated with polycythemia vera and other myeloproliferative disorders. If your burning feet respond dramatically to cooling and you have the characteristic redness, mention erythromelalgia specifically to your doctor.

Other Causes of Burning Feet at Night

Athlete’s foot (tinea pedis) — fungal infection causes burning between the toes and on the sole; usually also causes itching and scaling. Contact dermatitis — reaction to shoe materials, sock dyes, or foot creams. Tarsal tunnel syndrome — posterior tibial nerve compression causes burning on the sole that worsens at rest. Peripheral artery disease — rest pain (burning in the feet when lying down, relieved by hanging feet off the bed) in advanced PAD. Vitamin B12 deficiency — a common and treatable cause of burning feet; get B12 levels checked, especially if vegetarian/vegan or on metformin. Hypothyroidism — low thyroid function causes neuropathic changes; TSH should be checked as part of any neuropathy workup.

Treatment for Burning Feet at Night

Treatment targets the underlying cause. For neuropathic burning: gabapentin (300-1200mg at bedtime), pregabalin, or duloxetine (an SNRI antidepressant with FDA approval for diabetic neuropathy pain) are first-line medications. Topical lidocaine patches or capsaicin cream (0.025-0.075%) applied to the feet at bedtime reduce local burning. Alpha-lipoic acid 600mg daily has randomized controlled trial evidence for reducing neuropathic pain in diabetic neuropathy. For B12 deficiency: B12 supplementation (1000mcg daily sublingual or monthly injection) can reverse the neuropathy if caught early. For tarsal tunnel: orthotics, injection, and decompression surgery as appropriate.

In-Office Treatment at Balance Foot & Ankle

We evaluate burning feet at night with comprehensive neuropathy testing including monofilament testing, vibration threshold, and referral for nerve conduction studies when indicated. We treat peripheral neuropathy and tarsal tunnel syndrome and coordinate with neurologists and endocrinologists for complex cases. Don’t accept burning feet as inevitable — effective treatment exists for most causes.

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