Which is a potential complication arising from cat bites?

Abscess formation is a common complication arising from cat bites due to the nature of the bacteria commonly found in a cat's mouth. When a cat bites, their sharp teeth can puncture the skin and introduce these bacteria directly into the tissues. This can lead to localized infection, where pus accumulates in the tissue, forming an abscess.

The enclosed environment of an abscess creates an ideal setting for bacteria to thrive, making it a significant concern following cat bites. Symptoms may include swelling, pain, and sometimes fever, indicating the body's response to the infection. Treatment often requires veterinary intervention, including draining the abscess and administering antibiotics to clear the infection.

While other complications such as septic arthritis can occur, they are less common compared to abscesses that form directly at the bite site. Feline leukemia and pneumonia, on the other hand, are not typically associated directly with cat bite injuries, making abscess formation the most pertinent complication in this context.