Depends on depth!: Wounds need evaluation and repair if they go all the way through the skin and are of any significant length. If the yellow fat is showing or you can't easily stop the bleeding or if there is any question of injury to deeper structures (stab- vs. slice-type wounds), go immediately to an Emergency Room or urgent care center where the wound can be evaluated, cleaned and repaired. Remember Tetanus!
Answered 5/10/2014
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