Many abusers who inject anabolic steroids may use nonsterile injection techniques or share contaminated needles with other abusers. In addition, some steroid preparations are manufactured illegally under nonsterile conditions. These factors put abusers at risk for acquiring lifethreatening viral infections, such as HIV and hepatitis B and C. Abusers also can develop endocarditis, a bacterial infection that causes a potentially fatal inflammation of the inner lining of the heart. Bacterial infections also can cause pain and abscess formation at injection sites.
First things first. Sterility. Only use new pins and do not share, do not let the pins make contact with anything that may be hazardous by keeping the plastic covering on when not being used, use substances which you are sure are legit, reputable, and are sterile, wash hands thoroughly before any procedures, inject in a clean sterile environment, and make sure the injection site is cleaned with antibacterial agents before and after administration. It’s easy to just skip this paragraph or become lazy over time, thinking that you will be fine. If you want to reduce your risk of infections (which can be very painful and put you out of training for a while), then always think about sterility before and after administration. Be smart.