Call 911 for sudden numbness or weakness on one side of the body, face drooping, or trouble speaking. Go to an emergency department for numbness with new back pain and trouble controlling your bladder or bowels.
Common causes
Peripheral neuropathy
Damage to the nerves in the feet, usually in both feet, starting in the toes. Diabetes is the most common cause. Others include low vitamin B12, thyroid disease, kidney disease, heavy alcohol use, and some medications including chemotherapy. See neuropathy care and diabetic neuropathy.
Nerve compression in the foot or ankle
A pinched nerve can cause numbness in one part of the foot. Examples include Morton's neuroma, which causes numbness between two toes, and tarsal tunnel syndrome, which affects the nerve on the inside of the ankle.
Nerves in the lower back
A pinched nerve in the lower back can cause numbness or tingling down the leg into the foot, often on one side.
Circulation and shoes
Poor circulation can cause numbness or coldness, often with cramping when walking. Tight shoes or socks can also compress nerves on top of the foot.
What the visit includes
A history of your symptoms, a medication review, and testing of sensation, reflexes, and circulation in the feet. You'll get an explanation of the likely cause, a plan, and any lab work or referrals to discuss with your primary care doctor.
Which visit to book
Book the Neuropathy visit ($199).