Article
Numb Fingers at Night: Posture, Nerve Pressure, B12 and Other Causes
Numb fingers at night usually trace to a nerve under pressure, a vitamin shortfall such as B12, diabetes or another health condition. A doctor can tell which. Mayo Clinic says to seek care right away for tingling or weakness in the hands or feet. A supplement cannot sort out the cause.
Written by the Flow Nerves label deskUpdated · 4 min read

Night numbness
Why do my fingers go numb at night?
Fingers go numb at night when a nerve is pressed, irritated or short of what it needs. Mayo Clinic lists injuries or pressure on a nerve among the causes of numbness, along with health conditions and vitamin shortfalls (Mayo Clinic, Peripheral neuropathy).
How you lie can matter, because a bent wrist or elbow can press on a nerve. We read no source on this, so a doctor should judge it.
Pressure
Could it be carpal tunnel or posture?
Possibly. Doctors check whether a nerve at the wrist, elbow or neck is pressed. Carpal tunnel is the best-known example. Our sources cover it only as pressure on a nerve (Mayo Clinic, Peripheral neuropathy).
A doctor can examine your hand and order nerve tests.
Do not rely on a brace or a supplement in place of a visit.
Other causes
Could B12 or diabetes be involved?
Yes. NIH says B12 deficiency can cause numbness and tingling in the hands and feet (NIH ODS, Vitamin B12). Diabetes is the leading cause of peripheral neuropathy (NINDS, Peripheral neuropathy).
| Pattern to note | What to tell the doctor |
|---|---|
| Which fingers go numb | Thumb side, little finger side or all |
| When it starts | In bed, on waking or both |
| Other symptoms | Weakness, dropping things, feet tingling |
| Medicines and supplements | Everything, with doses |
Prepare
How can you prepare for the visit?
Write down what you notice and bring the bottles. Tick what applies below, then copy the note.
A note-taking aid, not a test. CDC suggests keeping notes on symptoms to share with your doctor (CDC, Diabetes and nerve damage), and Mayo Clinic says to seek medical care right away for tingling, weakness or pain in your hands or feet (Mayo Clinic, Peripheral neuropathy).
The product
Is Flow Nerves for numb fingers?
The label does not say so. It claims only NERVE SUPPORT*, and no study of Flow Nerves exists in our sources.
See a doctor first. Keep taking prescribed medicine, and ask a pharmacist about interactions. Call 911 for sudden weakness or numbness on one side of the body.
FAQ
Flow Nerves questions people ask
Why are my fingers numb when I wake up?
A nerve may be under pressure from how you slept, or another cause may be involved. A doctor can tell. Seek care if it keeps happening (Mayo Clinic, Peripheral neuropathy).
Is numb fingers at night a sign of a stroke?
Usually not, but sudden weakness or numbness on one side of the body, with trouble speaking, needs 911 right away. Do not wait.
Can low B12 make fingers numb?
Yes. NIH says deficiency can cause numbness and tingling in the hands and feet (NIH ODS, Vitamin B12). Ask a doctor whether a blood test fits.
Does Flow Nerves contain B12?
No. The six names are magnesium glycinate, alpha lipoic acid, butcher's broom, L-carnitine, turmeric extract and coenzyme Q10. B12 is not among them.
Who wrote this
Written and reviewed by
Pages built from the label, the brand panels and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Flow Nerves. It is not the manufacturer or a distributor named on the label. We earn money when you buy through our order links.
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Check your medicines first with the Switchboard, especially diabetes medicine, blood thinners and blood pressure medicine, and see a doctor about new numbness or tingling, then pick a pack. On the seller's count one bottle is 30 days; 3 bottles cover 90 days and 6 cover 180.
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