OK guys....
I am confused. I seem to be getting these weird red lines all over my shoulders every week after I bench press on mondays. Then by the end of the week w/ lotion etc they go away completely, then come back next time I bench press. I don't think they are stretch marks as they go completely away after 2-3 days when I put lotion on them, and there is no scar or anything afterwards. I am thinking about going to see my dermatologist. I have had this problem now for like 4 weeks.
Here are some pics: