What is a potential consequence of untreated plantar warts?

The consequence of untreated plantar warts, specifically the spread of the virus to other body parts, is accurate because plantar warts are caused by the human papillomavirus (HPV). If these warts are not treated, there is a risk that the virus can spread to other areas of the body or even to other individuals. This can happen through direct contact or by using contaminated surfaces, such as floors in pools or showers.

In contrast, skin discoloration is usually not a direct consequence of plantar warts themselves and does not represent a primary concern. The statements about enhancement of athletic performance and increased bone density are unrelated to the condition, as plantar warts can actually hinder athletic performance due to pain or discomfort when walking or running. Thus, keeping the virus active and untreated can not only lead to more warts but also contribute to further complications involving viral spread.