20-06-2011, 07:46 PM
I would imagine it has to to with the increase in blood pressure when lifting weights. The bench along with dead lifts and squats are high pressure lifts.
I get marks on my traps when I use the squatting machine cos the pads are pushing about 200kg on my shoulders I think it's burst capillaries due to the blood pressure.
i'd go see a doctor just in case.
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