i've been reading about some bro's having gear leak out, and most of the time the culprit is scar tissue. i shoot EOD and only do my quads. so i hit each quad twice a week. as i look at my quad, i dont see any marks to suggest i have injected myself, but i have had blood roll down my leg pretty fast sometimes which leads me to believe that it was gear mixed with the blood.
can someone explain to me what scar tissue is/looks like and how it can affect gear leakage?