When it comes to sexually transmitted diseases (STDs) or sexually transmitted infections (STIs), the answer is not always straightforward. STDs caused by bacteria are usually easier to treat, while viral infections can be controlled but not necessarily cured. However, even an incurable STD can be manageable. Many STDs are treatable with antibiotics or antiviral medications, and some can even go away on their own.
Genital herpes, for example, is a common STD, but most people with the infection don't know they have it. While there is no cure, there are medications available that can prevent or shorten outbreaks. These medicines can also make you less likely to transmit the infection. Bacterial STDs can be cured with antibiotics if treatment starts early enough.
Viral STDs, on the other hand, cannot be cured, but symptoms can be controlled with medicines. There is a vaccine for hepatitis B, but it won't help if you already have the disease.