Sharing drug equipment such as needles or syringes is any easy way to get HIV. When you inject the drug in your skin, blood will come up the needle. When you share someone’s needle and it hasn’t been cleaned, the blood left in the needle will be injected into you. This is how people get infected.
You don’t have to inject drugs like heroin, cocaine, or speed. Sharing needles for injecting steroids could also infect you.
If you shoot up drugs and share needles, there is a big risk for getting HIV and other infections like hepatitis B and C.