If you're sexually active, it's best not to have sex the day before. When you arrive, ask if they will want a urine specimen. If not, urinate before you see the doctor. The exam will be more comfortable. Don't withhold health information because you're embarrassed.
Doctors are professionals.
They need to have all the facts to take care of you properly. Most will tell you that they've seen it all. If you've experienced any unusual bleeding If you've had any discomfort or itchiness Go ahead and ask your questions. Make sure you understand the doctor's explanation. Ask until you understand.