I never bruised, but now I bruise easily. Why?

I'm a 22 yr old active male. I have noticed that recently I bruise easily. I'm kind of worried because this never used to be a problem before. I recently had a physical and ped. I recently started taking saw palmetto to help with hair loss and have also started taking milk thistle to help with liver detox. I have been taking Saw Palmetto for about a month and the milk thistles for about 3 weeks or so. Within that time frame I have noticed the bruising. I was wondering if there was any relation between the bruising and the herbal pills that I'm taking???