My Thumb Is Suddenly Swelling What Could Cause A Thumb To Suddenly Swell?

What could cause a thumb to suddenly swell? - my thumb is suddenly swelling

When I woke up this morning was, my hand numb. Probably remained on him.

The numbness in all, but as my thumb.

The tip of the finger was swollen, where it curves.

At the end of the thumb is a horseshoe-shaped blue veins, I think.

The swollen area is not red.

No pain, numbness is only deaf, but the skin of my thumb.

If you bend your thumb, there is a sense Clicky milk.