All people that are sexually active are at risk of contracting an STI. If you have more than one partner, the risk of contracting an STI increases. Some of the STI's are asymptomatic (no visible symptoms) and can have serious health consequences if not treated. To ensure optimum sexual health you should consult with your doctor or health care professional at least every 6 months for a screening. Your health care professional will conduct a physical examination, urine test and possible drawing of blood for STI screening.