I have PCOS, and my cysts tend to smell when they drain. I can always tell when one drains because (1) it doesn't have endometrial lining (the specks in the blood), (2) pain for a few weeks until it "pops", (3) major mood swings, (4) the SMELL. The biggest issue for me is the smell. It stinks SO BAD! It smells like rot. Is this the case for everyone else? I can't see my gyno for another few weeks, so I'm stuck with a draining stinking cyst. And the blood is "old". It's dark reddish brown. Is this normal? Does anyone else have this?