Which sexually transmitted disease is caused by a virus characterized by painful genital blisters?

The sexually transmitted disease (STD) caused by a virus that is characterized by painful genital blisters is Herpes Simplex Virus (HSV), specifically genital herpes. Genital herpes is primarily caused by two types of the virus: HSV-1, which commonly causes oral herpes, and HSV-2, which typically causes genital infections.

Infection with HSV can result in outbreaks of painful blisters or sores in the genital area. These blisters can break, leading to ulcers that may take several weeks to heal. While there is no cure for herpes, antiviral medications can help manage outbreaks and reduce the risk of transmission to sexual partners. It is important for individuals who suspect they have herpes or have been diagnosed with HSV to communicate with their partners and consider safe sex practices to prevent spreading the infection.