• Possible Causes of Tingling or Hotness Sensation Under the Legs
  These sensations can arise from various underlying issues including nerve irritation, poor circulation, or skin-related conditions.

• Nerve-Related Causes

  • Peripheral Neuropathy: Damage to peripheral nerves, often due to diabetes, vitamin deficiencies (like B12), or alcohol abuse, can cause tingling, burning, or numbness.
  • Sciatica: Compression or irritation of the sciatic nerve, commonly from a herniated disc, may cause radiating pain and abnormal sensations in the legs.
  • Nerve Compression: Other nerve entrapments or injuries can also lead to these symptoms.

• Circulatory Issues

  • Poor blood flow from conditions such as peripheral artery disease (PAD) can cause burning or tingling sensations due to reduced oxygen supply to nerves.
  • Varicose veins or blood clots might also contribute to discomfort and warmth in the legs.

• Skin and Inflammatory Conditions

  • Fungal infections like athlete’s foot can cause itching, burning, and hot sensations.
  • Dermatitis or other inflammatory skin conditions may also produce similar symptoms.

• Other Possible Causes

  • Metabolic disorders such as diabetes can lead to nerve damage causing these sensations.
  • Vitamin deficiencies, especially vitamin B12, are known to cause nerve-related symptoms.
  • Certain medications may have side effects that include peripheral neuropathy.

• When to See a Doctor
  Seek medical evaluation if you experience persistent or worsening symptoms, muscle weakness, swelling, loss of sensation, or if the tingling and burning interfere with daily activities.

• Relevant Medical Specialties and Tests

  • Consult a neurologist for nerve-related causes.
  • A vascular specialist can assess circulatory issues.
  • A dermatologist may be needed for skin-related causes.
  • Diagnostic tests might include blood tests (to check for diabetes or vitamin deficiencies), nerve conduction studies, and Doppler ultrasound to evaluate blood flow.

If you are experiencing these symptoms, it is important to consult a specialist doctor for a thorough evaluation and appropriate management.