Foot Numbness: Causes and Solutions for Walking Discomfort

The tingling sensation in the soles of the feet becomes more pronounced the longer I walk?

Occasionally, there is numbness in the soles of my feet, especially after walking for more than 20 minutes, where the numbness becomes more pronounced and can extend to halfway up my calves.
It improves somewhat after resting for a while, but there is still a slight numbness in the soles.
Sometimes, while sitting, I also experience a little numbness in my feet, but it does not occur when I am lying down to sleep.

Miss Lin, 30~39 year old female. Ask Date: 2023/12/20

Dr. Jiang Junyi reply Neurology

Dear Miss Lin,
You mentioned that "the numbness in the soles of your feet becomes more pronounced, and it extends to half of your calves, improving only after resting for a while, but there is still a slight numbness in your feet." Your symptoms may suggest possible sciatic nerve compression.
A common cause is a herniated disc leading to localized inflammatory responses, which can result in lower back pain that may radiate to one or both sides of the buttocks or hips.
If the herniated disc compresses the nerve roots, it can lead to neuropathic pain (sciatica), with symptoms typically located in the posterior thigh, lateral calf, and sole of the foot.
Peripheral neuropathy may present with the following characteristics:
1.
Pain that is burning or electric in nature.
2.
Symptoms that follow a specific dermatomal distribution, which can be triggered by touch or pressure.
3.
Accompanied by muscle soreness and weakness.
Examinations for peripheral nerve issues often utilize electrophysiological tests for diagnosis.
Nerve conduction studies assess the conduction velocity and waveform of large fiber nerves, while electromyography evaluates muscle responses in the affected nerve distribution areas.
I recommend that you consult a neurologist or a rehabilitation specialist for examinations (such as nerve conduction studies and electromyography) and treatment.
The physician will prescribe medications and rehabilitation therapies based on your condition.
Thank you for your inquiry, and feel free to discuss any related questions further!
Wishing you good health, peace, and joy.
Dr.
Jiang Junyi
Department of Neurology, Taoyuan Hospital

Reply Date: 2023/12/20

More Info

Foot numbness and discomfort during walking can be attributed to several underlying causes, particularly in individuals who may have pre-existing conditions such as flat feet, bunions, or even neurological issues. Understanding the potential reasons for these symptoms is crucial for finding effective solutions.

Possible Causes of Foot Numbness
1. Nerve Compression: One of the most common causes of numbness in the feet is nerve compression. This can occur due to tight footwear, which may compress the nerves in the foot, leading to sensations of numbness or tingling. Conditions like Morton's neuroma, where a nerve between the toes becomes irritated, can also lead to similar symptoms.

2. Circulatory Issues: Poor circulation can result in numbness and discomfort in the feet. Conditions such as peripheral artery disease (PAD) can restrict blood flow, especially during physical activity, leading to numbness and pain.

3. Musculoskeletal Issues: Flat feet or overpronation can alter the biomechanics of walking, leading to excessive pressure on certain areas of the foot. This can cause discomfort and numbness, particularly if the foot is not properly supported by footwear or orthotics.

4. Diabetes: Diabetic neuropathy is a common complication of diabetes that can lead to numbness and tingling in the feet. If you have a history of diabetes, it’s essential to monitor your foot health closely.

5. Vitamin Deficiencies: Deficiencies in certain vitamins, particularly B vitamins, can lead to nerve damage and result in numbness. Ensuring a well-balanced diet can help mitigate this risk.

6. Posture and Gait: Poor posture or an abnormal gait can lead to uneven distribution of weight across the feet, causing discomfort and numbness. This is often exacerbated by prolonged walking or standing.

Solutions and Recommendations
1. Footwear: Ensure that you are wearing well-fitted shoes that provide adequate support. Shoes that are too tight can compress nerves and blood vessels, leading to numbness. Consider shoes with a wide toe box and good arch support.

2. Orthotics: Custom orthotic inserts can help correct biomechanical issues such as flat feet or overpronation, providing better support and reducing pressure on specific areas of the foot.

3. Stretching and Strengthening Exercises: Regularly stretching the calf muscles and strengthening the muscles of the foot can improve flexibility and support. Exercises that focus on the intrinsic muscles of the foot can also help alleviate discomfort.

4. Rest and Recovery: If you experience numbness after prolonged walking, take breaks to rest your feet. Elevating your feet can help improve circulation and reduce symptoms.

5. Consult a Specialist: If numbness persists or worsens, it is advisable to consult a healthcare professional, such as a podiatrist or orthopedic specialist. They can perform a thorough examination and may recommend diagnostic tests to determine the underlying cause.

6. Lifestyle Modifications: Maintaining a healthy weight, staying active, and managing any underlying health conditions (such as diabetes or circulatory issues) can significantly impact foot health.

7. Physical Therapy: A physical therapist can provide tailored exercises and treatments to address specific issues related to gait and foot mechanics.

In conclusion, foot numbness during walking can stem from various causes, including nerve compression, circulatory issues, and musculoskeletal problems. By understanding these potential causes and implementing appropriate solutions, you can alleviate discomfort and improve your overall foot health. If symptoms persist, seeking professional medical advice is crucial for proper diagnosis and treatment.

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