std discharge :: Article Creator Types Of STDs: Everything You Need To Know An STD (sexually transmitted disease) is a condition that develops due to a virus, bacteria, or parasite that spreads through sexual contact. STDs may be referred to as STIs (sexually transmitted infections). An STI causes the condition, and an STD develops as a result of that infection. Many sources use these terms interchangeably. Many different types of STDs present with various symptoms, such as rashes, itching, unusual discharge or bleeding, fever, and flu-like symptoms. Some STDs can lead to complications like infertility and cancer, especially if untreated. Most STDs are curable, but some are chronic (long-lasting). About 20 million new cases of STIs occur each year, and this number appears to be increasing. Anyone sexually active can get an STD, but teenagers, young adults, and men who have sex with men are at the highest risk. Human papillomavirus (H...