I just cut my self pretty deep and can see yellow. worth getting it looked at? about 2/3mm deep, about 4 wide and an inch long)

Self- mutilation: Need tetanus shot if you haven't had one in last 10 years, don't know when you last had one or if the wound is dirty & it has been more than 5 years since last shot. May need stitches if wound depth > 1/4”, wound edges are gaping or if fat / muscle is visibly extending from wound. See: http://www.mayoclinic.org/first-aid/first-aid-cuts/basics/art-20056711 ** If you aren't receiving a form of >