question: I was carving a pumpkin and stabbed myself in my wrist on my left arm right below my thumb.  I went to the ER and got two stitches. Now, three days later, there is a large bruise from the bottom of my thumb on my same arm that goes down the middle of my wrist and it is about 3-4 inches long.  Is this normal?  Does it indicate more complication or possibly and infection?