Spots on my bikini.........?

There are these pinkish purple spots on my bikini. The bikini is white...


I wore it at a friends house, and forgot to wash it. What's the cause of these spots? They don't come out with soap ...Spots on my bikini.........?
Mould most probably? Or the chemicals in the pool water are mucking with the bleachs in the white fabric.





Try bleaching it.Spots on my bikini.........?
It could be bleach spots from chlorine in the pools.


Orrr, mould.





either of which wouldn't come out.