What common issue does backlighting create in photography?

Backlighting creates a scenario where the light source is positioned behind the subject being photographed. This can lead to the subject being inadequately lit because the camera exposes for the brighter background, often resulting in the subject appearing shadowed or silhouetted. In many cases, this effect can diminish the visibility of details in the subject, making them less distinct and defined against the bright light source. While backlighting can be used creatively to achieve certain dramatic effects, it commonly presents the challenge of managing the exposure properly to avoid losing detail in the subject.