Hi. I had umbilical hernia repair a little over a year ago an earlier this year started having fluid and blood leaking from navel off and on. Went back to surgeon and he said that he couldn't see anything & that day it was draining bad. The PA and nurse saw it. Surgeon used mesh. It's a dark area in the middle of navel. Also for last few months when my menstrual cycle comes on my navel bleeds and drain more. Smell is really awful then. Have to keep cleaning navel off & on.