I had my left bartholin gland removed about a week ago. The doctor did not put a catheter in for drainage after surgery and now I think I have a hematoma near my rectum. I'm still having a lot of drainage (bright red blood and dark thick muddy blood). Now I have a huge hard lump close to my rectum and a lot of swelling still from my surgery. What could this hard lump (the size of a half of dollar) be? My vagina (outside) is still swollen a lot. Please help.