There are a wide range of causes for a burning sensation in the feet, but this symptom is commonly an indication of damaged nerve fibers in the body. Other causes of a burning sensation in the feet include small fiber neuropathy, vitamin deficiencies, diabetes, chronic kidney disease, alcohol abuse, Lyme disease and heavy metal poisoning, according to WebMD.
In most situations, the cause of a burning sensation in a foot can be determined easily with appropriate testing from a physician. Specific testing performed may include an EMG, laboratory tests and a biopsy on the nerves. For instances where a doctor determines the cause of the problem to be associated with diabetes or nerve damage, there typically does not need to be any further testing done.