Repeated heroin injections into the arms can leave visible track marks, and some users inject between their fingers or toes to avoid obvious marks.

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A method of drug administration where heroin is injected directly into a vein using a hypodermic needle. The image provided shows this act being performed on an ankle.

Intravenous Heroin Injection

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Track Marks from Intravenous Heroin Use

People who inject heroin intravenously, like other intravenous drug abusers, are described as having increased risk for contracting tuberculosis and HIV.

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