<prompt> Wound with bloody discharge belongs to which grade as per Southampton wound grading systemGrade 1Grade 2Grade 3Grade 4  <response>: Southampton wound grading system for healing and injection :Grade 0 is normal healing.Grade 1 is with bruising mild erythema.Grade 2 is severe erythema with other features of inflammation at or around wound.Grade 3 is serous or bloody discharge.Grade 4 is presence of pus or deep infection or tissue break - down or significant haematoma. 