I have had all of my hpv jabs and after 6 months the spot on my arm where the needle went in is still visible and has turned a blackyblue colour it hurts when that arm is touched what is wrong?

It's possible that you are experiencing a localized reaction to the vaccine, which can include bruising or discoloration at the injection site. However, persistent pain and discoloration after six months could indicate an issue that requires medical attention, such as an infection or hematoma. It's important to consult a healthcare professional for an accurate diagnosis and appropriate treatment.