Left Leg Numbness and Discomfort: When to See a Neurologist

Left leg soreness and numbness?

Hello Doctor, about a year ago, I started experiencing swelling and numbness in my left leg.
Initially, the swelling was more pronounced in the calf and ankle compared to my right leg, but it resolved after a few days.
The numbness also lasted for a few days before improving.
Recently, I have begun to feel tightness and soreness throughout my entire thigh.
When sitting cross-legged, it feels very tight, and when lying down or on my side, my thigh feels quite sore.
What could be the cause of this? Should I see a neurologist for an examination? I previously visited a family medicine clinic, where I had an ultrasound, and there were no blockages found.
Thank you for your response.

LAN LAN, 30~39 year old female. Ask Date: 2021/02/20

Dr. Jiang Junyi reply Neurology

Hello, based on your description, it may be necessary to consider symptoms of nerve compression due to a herniated disc, as posture can lead to sensations of numbness or tingling.
However, the swelling you mentioned may warrant consideration of deep vein thrombosis (DVT).
Poor venous return in the deep veins can cause symptoms such as limb swelling, and there are many potential causes, including slow blood flow, vascular wall injury, and blood disorders.
Complications can include pulmonary embolism, which can be life-threatening in severe cases.
Clinical manifestations include swelling, pain, and increased temperature in the affected limb.
If a herniated disc is present, it may cause localized inflammatory responses leading to back pain and nerve root compression, resulting in radiating numbness or pain down one leg.
It is recommended that you visit a neurology clinic for further evaluation.
Wishing you good health and peace.
Dr.
Jiang Junyi, Taoyuan Medical Center.

Reply Date: 2021/02/20

More Info

The symptoms you are experiencing in your left leg, including swelling, numbness, and a feeling of tightness or discomfort, can be indicative of various underlying conditions. Given that you have already undergone an ultrasound to rule out vascular obstruction, it is essential to consider other potential causes that may be contributing to your symptoms.

Firstly, the sensation of tightness and discomfort in the thigh, especially when sitting cross-legged or lying down, could be related to muscular issues or nerve compression. Conditions such as sciatica, where the sciatic nerve is compressed or irritated, can lead to symptoms that radiate down the leg, including numbness and discomfort. Additionally, tightness in the muscles of the thigh could be due to overuse, strain, or even a condition known as myofascial pain syndrome, where trigger points in the muscles cause referred pain and discomfort.

Another possibility is that your symptoms could be related to a condition affecting the lumbar spine, such as a herniated disc or spinal stenosis. These conditions can lead to nerve root compression, resulting in pain, numbness, or weakness in the legs. The fact that your symptoms have evolved over time, with initial swelling and numbness followed by tightness and discomfort, suggests that there may be an ongoing issue that requires further investigation.

Given the complexity of your symptoms and their persistence, it would be advisable to consult a neurologist. A neurologist specializes in diagnosing and treating conditions related to the nervous system, including peripheral neuropathies and radiculopathies. They may recommend further diagnostic tests, such as an MRI of the lumbar spine, nerve conduction studies, or electromyography (EMG) to assess the function of the nerves and muscles in your leg.

In addition to neurological evaluations, it may also be beneficial to consider physical therapy. A physical therapist can help assess your posture, movement patterns, and muscle strength, providing targeted exercises to alleviate tightness and improve overall function. They can also teach you strategies to manage your symptoms and prevent further discomfort.

In summary, while your previous ultrasound has ruled out vascular issues, the symptoms you are experiencing warrant a thorough evaluation by a neurologist. They can help identify the underlying cause of your discomfort and develop an appropriate treatment plan. Early intervention is crucial in managing these types of symptoms, as it can prevent further complications and improve your quality of life. If you notice any worsening of your symptoms, such as increased pain, weakness, or changes in bowel or bladder function, seek medical attention promptly.

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