Which condition is characterized by the formation of blisters and is often caused by a viral infection?

The condition characterized by the formation of blisters and is often caused by a viral infection is genital herpes. Genital herpes is primarily caused by the herpes simplex virus (HSV), which can lead to painful, fluid-filled blisters in the genital and anal areas. These blisters can rupture and create open sores, contributing to the symptoms associated with the infection.

The blisters encountered in genital herpes are a hallmark symptom, distinguishing it from other conditions. Impetigo, though involving blisters, is a bacterial skin infection and looks different from the viral blisters of herpes. Psoriasis is a chronic skin condition that results in thick, red, scaly patches rather than blisters. Ringworm, a fungal infection, can cause ring-shaped rashes but does not result in blisters like herpes does. Thus, genital herpes stands out as the condition specifically linked to viral infections and blister formation.