This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

Bodies change all the time. Discharge shifts across a cycle. Skin gets irritated by razors, sweat and new soap. A bump is not always a sign of an infection, and a lack of symptoms is not always a sign of good news.

This guide walks you through a simple way to notice, record and sort what you are seeing. It cannot tell you what is causing a change. Only a clinician and a test can do that. What it can do is help you decide when to get checked and what to say when you do.

First, what are symptoms of an STD?

The Centers for Disease Control and Prevention (CDC) says many sexually transmitted infections cause no symptoms at all, or symptoms so mild they are easy to miss. That is the most important fact in this article. A body that feels normal does not answer the question either way.

When symptoms do appear, the CDC STI Treatment Guidelines (2021) describe patterns like these:

Unusual discharge from the vagina, penis or anus
Burning or pain when urinating
Sores, blisters or ulcers on or near the genitals, anus or mouth
A rash, including on the palms or soles, which the CDC lists among syphilis symptoms
Pelvic or testicular pain
Pain during sex
Bleeding between periods or after sex
Itching in the genital area
Swollen glands in the groin or neck

Many of these also have non-infectious causes. That overlap is why a careful look matters, and why a test matters more than a guess.

For a longer list organized by body type, see our guide to STD symptoms in women, signs, and when to test.

What you need

You do not need any products. Gather these simple things:

A notebook or the notes app on your phone
A calendar, including your cycle dates if you have a cycle
A list of your recent sexual contact dates, as best you remember them
A list of any new products, medicines or activities (new soap, detergent, shaving, a new medicine, a hot tub, a long bike ride)
A private, well-lit space and a few unhurried minutes
Your picture ID and a phone, in case you decide to go to a clinic

Step-by-step: sorting a symptom from a normal change

Step 1. Write down exactly what you notice

Use plain description. Write "small painless sore on the shaft, about the size of a pencil eraser" rather than "weird bump." Note the color, texture, smell, amount and location. If you can safely take a photo for your own records, it can help a clinician later.

Stick to what you see and feel. Skip guesses about the cause. Naming a cause is a clinician's job.

Step 2. Note when it started and how it has moved

Add a date to every entry. Ask yourself:

Did it appear suddenly, or slowly?
Is it getting better, worse or staying the same?
Does it come and go?

Normal cycle changes tend to follow a rhythm that repeats month to month. A change that does not follow your usual pattern is worth a note. So is one that lingers.

Step 3. Compare it to your own baseline

You are the best judge of what is usual for you. Discharge that changes with the menstrual cycle, with arousal or with hormonal birth control can be a normal variation. Dry, flaky or red skin after shaving or a new detergent is common too. Razor bumps and ingrown hairs can look like small sores.

Some changes are less likely to be routine. These include sores that do not heal, pain with urination, new discharge with a different color or smell, and pelvic or testicular pain. Write these down and plan to get checked rather than waiting to see what happens.

Step 4. Look at possible non-infectious explanations

Many things can cause irritation or discharge that have nothing to do with sexual contact. Review the list you made:

New soaps, wipes, lubricants, condoms or laundry products
Shaving, waxing or tight clothing
Antibiotics or other new medicines
Yeast overgrowth or bacterial vaginosis, which are not classified as STIs but can look similar
Urinary tract infections, which can also cause burning
Skin conditions such as eczema

You cannot rule these in or out on your own. The goal is to give a clinician useful information.

Step 5. Match your timeline to your exposure history

Look at your list of recent contact dates. Some infections show symptoms within days. Others take weeks, and some show none. Because timing varies, a clinician can tell you which tests make sense for your dates. The CDC publishes the testing window for each infection, so ask your clinician which one applies to you.

Do not use a symptom-free week as proof of anything. Sores from syphilis, for example, can heal on their own even while the infection stays in the body, according to the CDC. That is why a symptom changing or going away is not the same as a test coming back negative.

Step 6. Decide on a next step

Use your notes to choose one of these paths:

Soon: You have a sore, unusual discharge, burning, pelvic pain, a rash, or a recent partner who was diagnosed with an STI. Get seen as soon as you can.
Soon, even without symptoms: You have had a new partner or a partner with other partners, or you are unsure about your history. A clinician can talk through testing with you, because many infections cause no signs.
Urgent care: You have severe pain, fever with pelvic or testicular pain, or heavy bleeding. Seek care right away rather than waiting for a clinic slot.

If you would like options nearby, see our list of Orlando testing locations.

Step 7. Bring your notes to the visit

Show your symptom log and your date list. Clinicians ask about sexual history because it guides which tests to run, not to judge. Tell them about all kinds of contact, including oral and anal sex, since infections can show up in the throat and rectum. Ask what each test checks, how long results take, and when to follow up.

Where Orlando readers can get checked

The Florida Department of Health in Orange County runs an STD clinic at 832 West Central Blvd, Orlando. The county page describes it as walk-in and first come, first served, and it asks for a picture ID. You can call 407-858-1400 with questions or to schedule. The page says clinic fees start at $20 and go up from there, with a sliding scale after an eligibility screening. It also says results take about one week. Because hours vary across county pages, call before you go.

The Center Orlando, at 942 N Mills Ave, lists walk-in testing on its testing page. It publishes prices of $15 for syphilis and $50 for chlamydia and gonorrhea, and HIV and hepatitis C testing at $0. Miracle of Love lists free HIV and STI screenings by appointment, though its Test & Treat page says it does not perform gonorrhea or chlamydia swabs. Check with each site before you go.

In Florida, the consent of a parent or guardian is not required for a minor to be examined or treated for a sexually transmissible disease, and that care is confidential, according to Florida Statutes section 384.30.

For context, FLHealthCHARTS from the Florida Department of Health reports a 2025 chlamydia rate of 516.7 per 100,000 people in Orange County, compared with 410.8 per 100,000 statewide. Infections are common here, and many people have no symptoms at all.

Tips

Start your log the day you notice something. Memory fades quickly.
Write down the contact dates before the visit, not in the waiting room.
Ask a trusted partner, if you can, to tell their own clinician about any exposure too.
Ask your clinician about vaccines that may help protect against HPV and hepatitis A and B.
If a partner tests positive, tell your clinician. Florida law (section 384.27, per the CDC) allows expedited partner therapy in some situations, which your clinician can explain.

Common mistakes to avoid

Waiting for symptoms. The CDC notes that many infections have none.
Assuming a symptom that went away is gone. Some signs fade while the infection continues.
Treating yourself. Leftover medicines or home remedies can hide symptoms and delay a clear answer. Treatment is something a clinician prescribes after a diagnosis.
Comparing yourself to photos online. Images vary a great deal and cannot stand in for an exam.
Skipping sites of contact. Throat and rectal testing may be needed if those were involved.
Letting embarrassment decide. Clinicians see these concerns every day. Getting checked is a routine health task.

What to expect afterward

A written log and a clinician visit will likely give you a clearer picture than guessing. Many people find that a visit brings relief, whatever the result. A clinician may find an infection, a non-sexual cause, or no cause at all.

If a test finds a bacterial STI or trichomoniasis, these are curable with treatment from a clinician. HIV, herpes and HPV are not curable, but they are treatable or manageable with care. Starting care sooner generally gives you more options.

You may also need follow-up testing. Ask your clinician when to return and whether a partner should be tested.

STD Symptoms vs Normal Body Changes: How to Tell the Difference