Most people who have contracted a Sexually Transmitted Disease (STD) don’t know that they have one. This is because STDs often don’t result in symptoms, making them difficult to detect. If you have noticed some unusual symptoms like pain while urinating, odd-smelling or unusually colored discharge, or painless bumps, sores, or warts, you could have contracted an STD. If you are sexually active, the only way to know for sure if you are STD-free is to get tested. Untreated STDs can lead to long-term health problems like infertility, chronic pain, cancer, and even death.