There are many reasons that a person can have parethesias or tingling sensation of the feet. The 3 most common are metabolic, neuropathic and vascular. Metabolic reasons are those that occur because of vitamin deficiencies. These include such things as Vitamin B12 and folic acid deficiencies. This also includes conditions such thyroid and parathyroid gland dysfunctions which can cause hormonal disturbances leading to the tingling in your feet. Neuropathic reasons include such things as compression of a nerve or degeneration of nerve secondary to another condition such as diabetes. A compressed nerve root in your lower back or a "pinched nerve" near your ankle or knee can also sometimes cause tingling sensations. Finally, vascular reasons include those things that block the circulation of blood in your lower extremities. This can be because of artherosclerosis of the narrowing of arteries because of plaque build up. As you can see the list is fairly extensive and this is just the more common causes.
You next step should be to get a through medical work-up with your primary care physician. You doctor will do a complete lab work up as well which will help determine if you have any of the metabolic causes. He or she will also assess you to see if you have circulatory issues with your legs. Finally if your doctor feels your symptoms are neurological he/she will send you to a neurologist. The neurologist may consider doing EMG/Nerve Conduction Studies to evaluate the health of your nerves. If the cause of your tingling is neuropathic, you can be placed on medication such as Lyrica or Neurontin to help reduce the tingling sensation.
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