Actually, heavy bleeding causes another kind of infection - it's from constant sloughing and other stuff. I'm not sure what it's called, but a gyno once said you can get a mild constant infection from it.
Blood clots also smell grody.
You can try taking apple cider vinegar or vitamin E daily (200-400 UI is ok) to thin out your blood a little. It also reduces your cramps, any ovarian cysts, and clots.
The caveat is that your blood is thinner, so you may have runnier blood (so have a good tampon or good coverage on a pad), but you will notice a general feeling of health. It may keep your blood free flowing instead of stagnant. When blood dries or clumps it just smells more.
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