Purple band after hanging
I have searched for info on this but don’t seem to find any. I’m new at hanging, just a week. I started with 2.5# and went to 5# this week. At 2.5# or 5# I have a purple ring around my shaft where the hanger is, I use the Malehanger 20 min and 10 min rest 3 sets. I do a 5 min warm up as well. I have no pain, no EQ issues, and the purple band goes away rather quickly when I remove the hanger. I just want to know if this color is normal due to the pressure of the hanger with weight? It is scary looking when I first remove the hanger. Help?