Title: What does numbness and tingling in your hands mean? - Quora
Headings: What does numbness and tingling in your hands mean?
What does numbness and tingling in your hands mean?
Mohammad Rajaei
Bob Gluck
Mohammad Ashori MD
Quora User
Bridget Perry

Content: Sitting or standing in the same position for a long time
Injuring a nerve (a neck injury may cause you to feel numbness anywhere along your arm or hand, while a low back injury can cause numbness or tingling down the back of your leg)
Pressure on the ne
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Carpal tunnel syndrome (pressure on a nerve at the wrist)
Diabetes
Migraines
Multiple sclerosis
Seizures
Stroke
Transient ischemic attack (TIA), sometimes called a "mini-stroke"
Underactive thyroid
Raynaud phenomenon (narrowing of the blood vessels, usually in the hands and feet)
Numbness and tingling can be caused by other medical conditions, including: Sitting or standing in the same position for a long time
Injuring a nerve (a neck injury may cause you to feel numbness anywhere along your arm or hand, while a low back injury can cause numbness or tingling down the back of your leg)
Pressure on the nerves of the spine, such as from a herniated disk
Pressure on peripheral nerves from enlarged blood vessels, tumors, scar tissue, or infection
Shingles or herpes zoster infection
Lack of blood supply to an area, such as from atherosclerosis, frostbite, or vessel inflammation
Abnormal levels of calcium, potassium, or sodium in your body
A lack of vitamin B12 or other vitamin
Use of certain medicines
Nerve damage due to lead, alcohol, or tobacco, or from chemotherapy drugs
Radiation therapy
Animal bites
Insect, tick, mite, and spider bites
Seafood toxins
Source: Numbness and tingling: MedlinePlus Medical Encyclopedia
Thomas Calloway
, Health/Wellness Freelance Panelist at Quora (2020-present)
Answered 8 months ago · Author has 1.9K answers and 551.6K answer views
Originally Answered: Sometimes my fingers go numb and tingle. Why is this? The “why” is typically a nerve and/or blood vessel impingement (blockage). This is similar to where you lean on your distal elbow too long or too hard on a desk, and the forearm becomes numbed. The flow of blood and nerve signals causes paresthesia (tingling/numbness) in extremities, like fingers as a signal to move. If it’s NOT physical, a differential medical diagnosis is required;