Edge is sloping with healthy pink/red healthy granulation tissue with scanty/minimal serous discharge in the floor; slough is absent; regional lymph nodes may or may not be enlarged but when enlarged always non-tender. Surrounding area does not show any signs of inflammation or induration; base is not indurated. Three zones are observed in healing ulcer. Innermost red zone of healthy granulation tissue; middle bluish zone of growing epithelium; outer whitish zone of fibrosis and scar formation .