When Is Foot Numbness a Sign of Neuropathy?
A foot that “falls asleep” after sitting awkwardly is usually easy to explain. Numbness that keeps returning, lasts longer than expected, or begins without an obvious reason deserves more attention. It may be a sign of peripheral neuropathy, which develops when nerves carrying signals between the feet and the rest of the body become damaged.
Below, My Chicago Foot Expert explains when persistent foot numbness may point to neuropathy.
Is Occasional Foot Numbness Normal?
Temporary numbness can occur when pressure briefly compresses a nerve, such as after crossing your legs or wearing tight shoes. Sensation should return after you change position or remove the pressure.
Persistent or recurring numbness is different. Neuropathy often begins gradually in the toes or soles and may affect both feet. Other sensations include tingling, burning, prickling, or the feeling of wearing socks while barefoot.
What Other Symptoms Can Neuropathy Cause?
- Reduced ability to feel pain or temperature
- Sharp, burning, or electric-like pain
- Muscle weakness or cramping
- Poor coordination or balance
- Increased sensitivity to light touch
Loss of sensation can make it harder to notice a blister, cut, burn, or pressure sore. Balance may also suffer because the nerves in the feet help the brain understand the body’s position.
What Can Cause Neuropathy?
Neuropathy has many possible causes. Nerve damage may be associated with vitamin deficiencies, excessive vitamin B6, certain medications, chemotherapy, long-term heavy alcohol use, autoimmune conditions, kidney or thyroid disease, infections, toxin exposure, injuries, or inherited disorders.
Numbness can also result from pressure on a specific nerve. Tarsal tunnel syndrome may cause burning, tingling, or numbness along the sole, while Morton’s neuroma can affect the ball of the foot and nearby toes. Circulation problems may produce similar symptoms.
Can Low Magnesium Cause Foot Numbness?
Magnesium supports normal nerve and muscle function. When a deficiency becomes more pronounced, symptoms can include numbness, tingling, weakness, and muscle cramps. However, unexplained foot numbness is not necessarily linked to low magnesium.
When Should Foot Numbness Be Evaluated?
Schedule an appointment if numbness persists, worsens, disrupts balance, or occurs with weakness, burning pain, skin changes, or a wound. Sudden numbness accompanied by weakness, difficulty speaking, dizziness, or a severe headache requires emergency care.
For any questions about foot health and wellness, reach out to the staff at My Chicago Foot Expert by calling (773) 561-8100 or by clicking here to schedule an appointment with Cook County podiatrist Stavros O. Alexopoulos, DPM, in our new, comfortable Chicago office, located at 5015 N Paulina Street, Suite #217.
