If you’re sexually active, it is important to get tested for STIs regularly. Sexually Transmitted Infections (STIs) can affect anyone who is sexually active and are probably more common than you think. Early diagnosis and treatment can help protect you and your sexual partners. AFC Urgent Care Back Bay offers rapid same-day STI testing on a walk-in basis for all patients, including Boston college students, 7 days a week. Walk-in today. Are STIs Common ...