Numbness in Left Thigh: When to See a Neurologist?

Loss of sensation in the left thigh?

I have numbness and slight tingling in my left thigh.
I can feel a bit when I pinch it, but it hurts a lot when I pinch the surrounding area.
I'm not sure which specialist to see.

Xuan, 20~29 year old female. Ask Date: 2023/04/17

Dr. Jiang Junyi reply Neurology

Dear Ms.
Hsuan,
You mentioned that "the left thigh has a bit of numbness and some sensation when pinched," which may indicate peripheral nerve issues such as lumbar nerve compression.
Symptoms of peripheral nerve compression include:
1.
Pain characterized by burning or tingling sensations.
2.
Symptoms that have a specific dermatomal distribution, which can be triggered by touch or pressure.
3.
Accompanied by muscle soreness and weakness.
Examinations for peripheral nerve issues typically involve electrophysiological studies to assist in diagnosis.

- Nerve conduction studies: Assess the conduction velocity and waveform of large fiber nerves.
- Electromyography (EMG): Evaluates muscle responses in the areas supplied by the affected nerves.
I recommend that you visit a neurology clinic for further evaluation and follow-up.
Thank you for your inquiry, and feel free to discuss any related questions!
Wishing you good health and peace,
Dr.
Jiang Jun-Yi, Taoyuan Medical Center

Reply Date: 2023/04/17

More Info

Numbness in the left thigh can be a concerning symptom, and it's important to understand when to seek medical attention, particularly from a neurologist. Numbness, or loss of sensation, can arise from various causes, including nerve compression, injury, or underlying medical conditions. Given your description of the numbness accompanied by pain when pinched, it is advisable to consult a healthcare professional to determine the underlying cause.

When to See a Neurologist
1. Persistent Symptoms: If the numbness in your left thigh persists for more than a few days or worsens over time, it is essential to seek medical advice. Persistent numbness can indicate an underlying issue that may require treatment.

2. Accompanying Symptoms: If you experience additional symptoms such as weakness in the leg, difficulty walking, loss of bladder or bowel control, or severe pain, you should see a neurologist immediately. These symptoms could indicate a more serious condition, such as a herniated disc or nerve damage.

3. History of Trauma: If you have recently experienced any trauma or injury to your back, hips, or legs, it is crucial to consult a neurologist. Injuries can lead to nerve compression or damage, resulting in numbness.

4. Medical History: If you have a history of conditions that affect the nervous system, such as diabetes, multiple sclerosis, or previous strokes, it is advisable to see a neurologist for evaluation.

5. Changes in Sensation: If the numbness is accompanied by tingling, burning sensations, or a "pins and needles" feeling, these could be signs of nerve irritation or damage, warranting a neurological evaluation.

Possible Causes of Numbness
- Nerve Compression: Conditions such as sciatica, where the sciatic nerve is compressed, can lead to numbness in the thigh. This often occurs due to a herniated disc or spinal stenosis.

- Peripheral Neuropathy: This condition, often associated with diabetes, can cause numbness and pain in the extremities due to nerve damage.

- Circulatory Issues: Poor blood circulation can lead to numbness. Conditions like peripheral artery disease (PAD) can restrict blood flow to the legs.

- Infections or Inflammatory Conditions: Certain infections or inflammatory diseases can affect the nerves, leading to numbness.

What to Expect During a Neurological Evaluation
When you see a neurologist, they will likely perform a thorough clinical examination, which may include:
- Medical History Review: Discussing your symptoms, duration, and any relevant medical history.

- Physical Examination: Assessing your strength, reflexes, and sensory responses in the affected leg.

- Diagnostic Tests: Depending on the findings, the neurologist may recommend imaging studies such as MRI or CT scans to visualize the spine and surrounding structures. Electromyography (EMG) and nerve conduction studies may also be conducted to assess nerve function.

Conclusion
In summary, if you are experiencing numbness in your left thigh, especially if it is persistent or accompanied by other concerning symptoms, it is advisable to consult a neurologist. Early evaluation and diagnosis can lead to appropriate treatment and management of any underlying conditions. Remember, your health is paramount, and seeking medical advice is always a prudent step when experiencing unusual or concerning symptoms.

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