Medically reviewed by Dr. Sarim Mir, board-certified neurologist at Mir Neurology.
Numbness and tingling in your hands is one of the most common reasons people see a neurologist — and two of the usual suspects are carpal tunnel syndrome and peripheral neuropathy. They can feel similar, but they have different causes, patterns, and treatments. Here’s how to tell them apart, what else could be behind your symptoms, and how an EMG pinpoints the answer.
What numbness and tingling can signal
Tingling, “pins and needles,” or numbness in the hands usually points to an issue with the nerves that serve them — whether a nerve is compressed, irritated, or damaged. Occasional tingling from leaning on an arm is harmless, but symptoms that are frequent, worsening, or affecting daily life deserve evaluation.
Carpal tunnel: the pattern and clues
Carpal tunnel syndrome comes from compression of the median nerve at the wrist. It classically affects the thumb, index, middle, and part of the ring finger — not the little finger. Symptoms often flare at night or with activities like driving or holding a phone, and you may wake up needing to “shake out” your hand. Learn more about carpal tunnel syndrome.
Peripheral neuropathy: the pattern and clues
Peripheral neuropathy involves damage to the peripheral nerves and often follows a “stocking-glove” pattern — affecting both hands and feet symmetrically, frequently starting in the feet. It can cause burning, tingling, or numbness and has many causes, including diabetes. Explore our approach to neuropathy treatment.
Other possible causes
Hand numbness can also come from a pinched nerve in the neck, thyroid issues, vitamin deficiencies, or other nerve compressions. Because the causes overlap, a clinical exam is the best way to narrow things down rather than guessing from symptoms alone.
When to see a neurologist
See a neurologist if numbness or tingling is persistent, worsening, waking you at night, spreading, or accompanied by weakness or clumsiness. Early evaluation can prevent lasting nerve damage and gets you on the right treatment sooner.
How EMG testing confirms the cause
An EMG and nerve conduction study measures how well your nerves and muscles are working, and it’s the key test for distinguishing carpal tunnel from neuropathy — and for locating exactly where a nerve is affected. At Mir Neurology, testing is done on-site in Hagerstown and Cumberland. If you’re dealing with hand numbness or tingling, book an appointment or call (301) 797-7600.
Frequently asked questions
Is hand numbness serious?
Occasional tingling is usually harmless, but frequent, worsening, or spreading numbness — especially with weakness — should be evaluated to prevent lasting nerve damage.
Does carpal tunnel cause numbness at night?
Yes. Nighttime numbness and waking up needing to shake out the hand are classic carpal tunnel symptoms.
Can neuropathy be reversed?
It depends on the cause. Some neuropathies improve when the underlying cause is treated; others are managed to slow progression and ease symptoms. Early evaluation gives the best options.
What test diagnoses nerve problems?
An EMG with a nerve conduction study is the primary test. It pinpoints whether the issue is carpal tunnel, neuropathy, or another nerve problem.
Need to talk to a neurologist about this?
Mir Neurology offers same-week appointments in Hagerstown & Cumberland, MD. No referral needed for most plans.
