Of these 8 infections, 4 are currently curable: syphilis, gonorrhoea, chlamydia and trichomoniasis. The other 4 are viral infections which are incurable: hepatitis B, herpes simplex virus (HSV or herpes), HIV, and human papillomavirus (HPV).
What STD Cannot be cured?
Viruses such as HIV, genital herpes, human papillomavirus, hepatitis, and cytomegalovirus cause STDs/STIs that cannot be cured. People with an STI caused by a virus will be infected for life and will always be at risk of infecting their sexual partners.
What's the worst STD you can have?
The most dangerous viral STD is human immunodeficiency virus (HIV), which leads to AIDS. Other incurable viral STDs include human papilloma virus (HPV), hepatitis B and genital herpes.