Why does my hand tingle every now & then?

Mild nerve compressi. At wrist carpal unnel elbow ulnar tunnel syndrome small finger tingling if it is not painful and resolves with limb positioning don't stress about it.
Nerve getting pinche. There are 2 main nerves that allow you feel feel sensation in your hands. One is the ulnar and the other is the median nerve. Tingling occurs when a nerve is irritated, stretched or pinched. If you tingle in the thumb or the second and third fingers then you may have carpal tunnel, compression of the nerve at the wrist. If the 4th and 5th fingers tingle then the nerve is stretched at the elbow.