Yes they do. The first time I had my "Green/Heart" Chakra's done, I fainted. I dropped to the ground it was so intense. The second time I did it with Captain Gordon of the Sacred Mark sanctuary. He came up from Baltimore. He did a whole spiritual workshop and explained why subconsciously, women tattoo and pierce certain parts of their bodies. IE) belly button piercing or nipple piercings is a way of re-severing the umbilical cord.
Green chakra relates to love/self love - the ability to give and take unconditionally. When balanced we are able to give love and also to love and nurture ourselves. Helps relax muscles, nerves, and thoughts. Cleanses and balances our energy, to give a feeling of renewal, peace and harmony. Green connects us to unconditional love and is used for balancing our whole being.