needle track
needle track mark
needle mark
track mark

She was also undergoing methadone treatment and allegedly had track marks on her body.

You ask about the track marks, he just grins.

He had track marks on his arms from the needles.

Maybe he had track marks on his arms.

As our fingers touched his sleeve rode up and I saw the track marks.

She bent over to pour herself another drink and he saw the track marks on her arms.

Relatively soft, often showing animal track marks on the bark.

True, I didn't have track marks on my arms or an enlarged liver.

At new spots, he often had to "show my track marks to prove I wasn't a cop."

No track marks: the boy was clean, never injected at least.