Is it a bruise..?

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well on my arm..theres dis lil thing greenish/blueish spot..it might b a bruise..but..it doesnt hurt when u put pressure on it..wat else can it b?

I wouldn't worry, it simply sounds like you've got a bruise that's going away (I know mine often change funny colors and stop being sore); but if it's not gone in a couple days or so, I'd see a doctor about it.