Why are my knees purple?

[FLY]

It's been a while since I have posted on this forum, but I have a questions. Does anyone's knees turn purple when training their legs? It doesn't hurt at all, but I have never seen my knees do this before. Just below my patella, a round spot (about the size of a silver dollar) turns bright purple. I'm guessing this is from lots of blood flow through the popliteal artery?

Should I be worried about this? Its so noticable that other people in the gym stop me to ask if something is wrong. I am in graduate school for exercise physiology and so far non of my professors have any explanations.

Thanks for you help.

[FLY]

bump........doesn't anyone have any ideas as to what this could be?

[purple]

I dont even know when this was posted, but I think I might know what is causing your knees to turn purple. Its a strange coincidence that I even came to this website. I actually have been experiencing the same thing.

I am a woman, and recently got introduces to 'G', or 'GHB'. I know taking drugs is not good, but I did try it. One week, though, I had taken 'GHB' (just a capful) a few days in a row, and by the end of the week, my knees were noticeably PURPLE!

My sister panicked when she saw me in a short skirt, "Oh my God! What is going on with your knees? It looks like you have bad circulation and should go to a doctor immediatly!"

I brushed it off, thinking I was just cold and/or they were brused from a dance class I had taken just a few days prior"

I looked up GHB, and the site stated this:

GHB, or Gamma Hydroxy Butyrate, is a central nervous system depressant. [SIZE=5]Because very
small amounts of GHB are found in the human body, GHB is often billed as a "natural"
supplement, or as an anabolic steroid that helps build muscle mass (this claim was never
proven).

So, you may be taking supplements rich with GHB!

I am never going to take 'GHB' ever again!!!

bump........doesn't anyone have any ideas as to what this could be?