The Return of the
Mysterious Scratch Marks
Back in April, Miley sported similar marks on her arm, causing a firestorm of speculation that the singer had been harming herself.
Miley responded to the rumors, insisting she does NOT self-mutilate ... but she never explained what caused the mystery marks. Now, they've suddenly returned.
We reached out to Miley's camp for comment -- so far, no word back.