There are many causes of tingling such as carpel tunnel syndrome (mainly in pregnant women), diabetes mellitus (mainly in elderly) , nerve injury and nerves degeneration diseases .
It could also be related to posture. When we sit for long periods in positions that don't follow the natural curvature of our spine, this can cause numbness/tingling. Also, poor posture can cause pinched nerves in the spine.
Your hand might be tingling if you have a pinched nerve anywhere from your wrist all the way up to your neck. Commonly, this is from carpal tunnel syndrome.
