Can I compost...
Tampons?
No.
Even natural, unbleached tampons shouldn't be thrown on the compost heap because of the length of time they would take to break down in comparison to the amount of stench they would kick up and the potential for rodent/amimal attraction.
However, the blood itself, while fresh, is a great source of nutrients for the garden: if you fancy it, wash them out in a bucket of water and pour straight onto the garden (or onto the compost heap - as long as it doesn't get overly wet) to reuse the goodness.
In category Household waste