15 Common Causes And Risk Factors For Septic Arthritis

7. Skin Conditions Near Joints

Chronic skin conditions such as eczema, psoriasis, or infected wounds near joints can increase the likelihood of bacteria entering the joint space. When skin integrity is compromised, especially near the elbows, knees, or fingers, pathogens have easier access to internal tissues. Individuals who scratch or pick at these areas can unintentionally drive bacteria deeper, increasing the risk of septic arthritis. Even minor abrasions can act as entry points if not cleaned properly. Maintaining skin health, treating rashes promptly, and preventing infection around joints are crucial preventative steps, especially for those with preexisting joint disorders.

8. Intravenous Drug Use

Individuals who use intravenous drugs face a heightened risk of septic arthritis, particularly when needles are shared or used in non-sterile conditions. Bacteria can enter the bloodstream directly through contaminated injections and travel to the joints. Additionally, repeated injections may lead to local infections or skin abscesses that further spread. The knees, hips, and shoulders are especially vulnerable. Because symptoms can be mistaken for general body aches or withdrawal pain, infections may go unnoticed until significant damage has occurred. Education, harm-reduction strategies, and timely access to healthcare are critical for prevention.