STI Symptoms: What to Look For and When to Act

If you’re wondering whether something’s off after a night of intimacy, the first place to check is your body. Sexually transmitted infections (STIs) often give clues that are easy to miss if you don’t know what to expect. Below we break down the most common signals, why they matter, and how to move from worry to action.

Common early signs

Most STIs start with subtle changes. A new discharge, a burning feeling when you pee, or a sore that won’t heal are the classic red flags. Here’s a quick list:

• Unusual discharge – Clear, white, yellow, or green fluid from the vagina or penis can mean an infection.
• Painful urination – A burning or stinging sensation often points to chlamydia, gonorrhea, or a urinary tract infection caused by an STI.
• Sores or bumps – Small, painless sores may be syphilis, while painful blisters could be herpes.
• Itching or irritation – Persistent itchiness around the genitals or anus can signal trichomoniasis or a yeast imbalance triggered by an STI.
• Flu‑like symptoms – Fever, sore throat, or swollen glands sometimes accompany HIV or hepatitis.

Notice that many symptoms overlap with non‑STI issues. That’s why testing is the only reliable way to know for sure.

When to see a doctor

If any of the above pop up, don’t wait. Schedule a visit within a few days. Early treatment cuts down on discomfort and stops the infection from spreading. Even if you feel fine, regular screening is a smart habit—especially if you have multiple partners or use condoms inconsistently.

During the appointment, the provider will likely take a swab, urine sample, or blood test. Results can come back in a day or a week, depending on the lab. While you wait, avoid sexual contact or use protection to keep the infection from moving to a partner.

Some STIs, like HPV, might not show any symptoms for years. That’s why vaccines (like the HPV shot) and routine Pap smears are crucial parts of prevention. If you get the vaccine, you’re still advised to get tested because the shot doesn’t cover every strain.

Bottom line: listen to your body, act fast, and keep the conversation open with your partner. A short chat about testing can feel awkward, but it’s the easiest way to protect both of you.

Got more questions? The best next step is to find a reputable clinic, ask about confidential testing options, and get the care you need. Your health is worth the effort.