Bleeding after exercise

[Monkeyjump]

I've often found I bleed/spot after doing strenuous exercise eg. Running, swimming. Has anyone else experienced this and found out what causes it?

Yes, I get this once a month. I mentioned it to a doctor who wasn’t that worried and suggested I was working out too hard. I have carried on the same because the workout is right for me and just means a bit of spotting once a month.