Left-Side Numbness: Causes and When to Seek Help

Numbness in the left hand and left foot?

Hello Dr.
Jiang, I would like to ask about a condition I've been experiencing recently.
For the past few days, when I wake up in the morning, I feel numbness from my left elbow to my fingers, and also from my left ankle to my toes.
Today, I even felt numbness in my left face, along with involuntary twitching.
What could be the cause of this, and which specialty should I consult?

Liu Xiaojie, 50~59 year old female. Ask Date: 2021/11/09

Dr. Jiang Junyi reply Neurology

Hello Ms.
Liu,
You mentioned that "the left elbow to the fingers often feels numb," which may suggest a common condition of ulnar nerve compression.
However, you also noted that "even the left side of the face feels numb, and there are involuntary twitching episodes," especially if these symptoms occur close together in time.
It is important to rule out any structural lesions in the brain.
I am not sure if you have metabolic syndrome (such as increased waist circumference, elevated fasting blood glucose, or abnormal lipid levels).
If so, you may be at a higher risk for stroke.
I recommend that you undergo evaluations for cerebrovascular and cardiovascular risk factors.
If you are concerned about radiation exposure, you may consider paying out-of-pocket for a brain MRI, which can provide detailed imaging without radiation.
For nerve repair, it is advisable to supplement with B vitamins and manage any risk factors.
I suggest you consult a neurologist to discuss further examinations and treatment options.
Thank you for your inquiry, and I wish you good health, peace, and happiness.
Dr.
Jiang Junyi
Department of Neurology
Taoyuan Hospital

Reply Date: 2021/11/09

More Info

Hello! It's important to address your symptoms of left-side numbness and involuntary twitching as they can indicate various underlying conditions. Given your description of numbness extending from your left elbow to your fingers, as well as from your left ankle to your toes, and the recent addition of facial numbness and twitching, it is crucial to seek medical attention promptly.

Possible Causes
1. Nerve Compression or Injury: The symptoms you're experiencing could be due to nerve compression, which can occur from sleeping in an awkward position, repetitive movements, or even conditions like carpal tunnel syndrome. If a nerve in your neck or shoulder is compressed, it can lead to numbness and tingling in the arm and hand.

2. Cervical Radiculopathy: This condition occurs when a nerve in the neck is compressed or irritated, often due to a herniated disc or bone spurs. It can cause pain, numbness, and weakness in the arms, particularly on one side.

3. Stroke or Transient Ischemic Attack (TIA): The sudden onset of numbness, especially if it affects one side of the body, can be a sign of a stroke or TIA. This is a medical emergency, and immediate evaluation is necessary.

4. Multiple Sclerosis (MS): MS can cause a variety of neurological symptoms, including numbness and tingling in different parts of the body. It is caused by the immune system attacking the protective covering of nerves.

5. Peripheral Neuropathy: Conditions such as diabetes can lead to peripheral neuropathy, which can cause numbness and tingling in the extremities.

6. Other Causes: Vitamin deficiencies (like B12), infections, or autoimmune diseases can also lead to similar symptoms.

When to Seek Help
Given the combination of symptoms you are experiencing—especially the involvement of your face and the twitching—it is advisable to seek immediate medical attention. You should visit a neurologist, as they specialize in conditions affecting the nervous system. They will likely perform a thorough neurological examination and may recommend imaging studies such as an MRI or CT scan to assess for any structural issues in the brain or spine.

What to Expect During Your Visit
During your appointment, the doctor will ask about your medical history, the onset and duration of your symptoms, and any other accompanying symptoms. They may perform tests to evaluate your strength, reflexes, and sensory responses. Depending on their findings, they may order additional tests to rule out serious conditions.

Conclusion
In summary, your symptoms warrant prompt evaluation by a healthcare professional, particularly a neurologist. Early diagnosis and intervention can be crucial in managing any underlying conditions effectively. Please do not delay in seeking help, especially given the potential seriousness of your symptoms. Take care, and I hope you find relief soon!

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