You are at high risk for getting HIV if you share needles, syringes, or other drug injection equipment (for example, cookers) with someone who has HIV. Never share needles or other equipment to inject drugs, hormones, steroids, or silicone. Used needles, syringes, and other injection equipment may have someone else’s blood on them, and blood can carry HIV. People who inject drugs are also at risk for getting HIV (and other sexually transmitted diseases) if they engage in risky sexual behaviors like having sex without protection (such as condoms or medicine to prevent or treat HIV). Sharing needles, syringes, or other injection equipment increases your risk for getting hepatitis B and hepatitis C, and other infections.