Lots of things. If you sleep on your hand, it may feel numb when you wake up. It can feel rather painful, and be a tingling sensation. Some shots and medications can lead to numbness as well. I'm sure there are many other ways as well.
at night i have painful cramping and sometimes numbness in my fingers and toes
It could be a certain deodorant that your body reacts to.
Yes, giving blood can cause numbness in fingers however, this is not a normal reaction. If you experience numbness in your fingers after giving blood, you should contact your doctor immediately.
bite them
Vitamin B12 deficit causing peripheral nerve demyelination.
Generally finger numbness is a result of conditions that affect nerves and/or blood vessels that supply the fingers. It is also associated with tingling. It need to be sorted out if the problem associated with only left thumb. Frequent symptoms are referred as finger paresthesia.
i just woke up with my left arm tingleing and numbness all the way to fingers, any anwsers?
Blue fingers, numbness
weakness of limbs; tingling or numbness of fingers
Pinched nerve in shoulder or c-spine
Funny bone :-)
This could be a sign of Reynauds or Guillian Barre' Syndrome