Most infections announce themselves. This one does not. Pelvic inflammatory disease is usually a dull ache low in the abdomen that could be a period coming, discharge that is a little different, and a day of feeling slightly unwell — a set of symptoms almost designed to be waited out. The treatment is a course of antibiotics. What the waiting costs is scarring in the fallopian tubes, and that part does not come back.
What has actually happened
The cervix is a door. Most of the time it keeps the upper reproductive tract separate from the vagina, which is not sterile and is not meant to be. Pelvic inflammatory disease is what we call it when bacteria get past that door and set up in the uterus, the fallopian tubes and sometimes the ovaries.
In most cases the bacteria arrived as a sexually transmitted infection — chlamydia and gonorrhoea are the two usual ones — that was present for weeks or months without symptoms. Chlamydia in particular is famous for causing nothing at all until this point.
- It is not caused by poor hygiene, and washing more does not prevent it.
- It is not the same as a vaginal infection. Thrush and bacterial vaginosis sit below the cervix and do not do this.
- It can follow a procedure that passes through the cervix, which is why those are done with care and why symptoms afterwards are taken seriously.
Why it gets waited out
Nothing on this list is dramatic. That is the problem with it, and it is worth reading the list knowing that every item on it is routinely attributed to something else.
- A dull ache low in the abdomen or pelvis, often on both sides — frequently put down to an approaching period.
- Discharge that has changed in amount, colour or smell.
- Pain during sex, particularly deep rather than at the entrance.
- Bleeding between periods or after sex.
- A low fever, chills, or just feeling unwell — easily read as a virus going round.
The combination that should move you is pelvic pain together with anything else on that list. Pain alone has many explanations; pain with changed discharge, or pain with a fever, narrows considerably.
If you are also pregnant or might be, say so first. Pelvic pain in early pregnancy is a different assessment with a different urgency, and an ectopic pregnancy has to be excluded before anything else proceeds.
What the visit involves
There is no single test that says yes or no. The diagnosis is made from the combination — what you describe, what the examination finds, and what the swabs and scan show — and that is why describing the symptoms plainly matters more here than in most visits.
- A conversation about the pain, the discharge, your last period, and recent sexual history. The last part is clinical information, not a judgment.
- An examination. Tenderness when the cervix is moved is one of the more telling findings, and it takes seconds.
- Swabs for chlamydia, gonorrhoea and other organisms.
- An ultrasound, which is looking less for the infection itself than for a collection or an abscess, and to rule out other causes of the pain.
- A pregnancy test, routinely, because it changes what can be prescribed.
The treatment, and finishing it
For most people this is a course of antibiotics taken at home, usually around two weeks, often more than one medicine because the infection is typically more than one organism. You will usually feel better within a few days.
Feeling better is not the same as being finished, and this is where the treatment most often fails. Stopping early leaves bacteria behind in exactly the place you did not want them, and a partly treated infection can go quiet without going away.
- Take the full course, including the days when you feel fine.
- Avoid sex until the course is finished and your partner has been treated, or it simply comes back.
- Partners need treating too, even with no symptoms — in men these infections are frequently silent.
- Come back if you are not improving in two to three days. That is the checkpoint, and it sometimes means a change of antibiotic or admission.
A minority need to be treated in hospital with intravenous antibiotics — if you are pregnant, very unwell, unable to keep tablets down, or if an abscess is found. That is a change of setting, not a sign that something has gone wrong.
What is actually at stake
The fallopian tubes are about as wide as a thread. An egg is moved along them by microscopic hairs, not by muscle, and inflammation damages both the channel and the lining. Scarring narrows it; narrowing is what causes the two things this article is really about.
- Difficulty conceiving, because the egg and sperm cannot meet, or the fertilised egg cannot travel.
- Ectopic pregnancy, where a pregnancy implants in the tube instead of the uterus — a medical emergency, and the reason past pelvic infection is always asked about in early pregnancy.
- Long-term pelvic pain in some people, from adhesions rather than from any ongoing infection.
These risks rise with each separate episode, which makes the second infection matter more than the first. It also means that the single most useful thing after one episode is making the next one less likely — which is testing between partners rather than only when something feels wrong. STI testing in Korea covers what that looks like in practice.
If you have had pelvic inflammatory disease and are planning a pregnancy, it is reasonable to say so early rather than after a year of trying — a fertility check can look at the tubes specifically, and knowing is better than assuming in both directions.
Common questions
Can I get it without having an STI?
Yes, though it is less common. Bacteria normally present in the vagina can occasionally ascend, and it can follow a procedure that passes through the cervix or, rarely, the first weeks after an IUD is fitted. Most cases, though, start as an infection that was there without symptoms.
How do I tell this apart from period pain?
Period pain follows your cycle and your own pattern. This tends to arrive outside that pattern, lasts longer than a period would, and usually brings something else with it — changed discharge, pain during sex, bleeding at odd times, feeling unwell. Pain that is new in character is the part worth acting on.
Does my partner really need treatment with no symptoms?
Yes. These infections are frequently silent in men, and an untreated partner is the most common reason the whole thing returns a month later. Treating both at once is what ends it; treating one is a pause.
Does having an IUD make this more likely?
Mostly no, and this is a common misunderstanding. There is a small increase in the first few weeks after fitting, which is why testing is done around that time, but after that an IUD does not meaningfully raise the risk. If an infection does occur, it can usually be treated with the device left in place.
If I have had it once, can I still get pregnant?
Usually, yes. A single episode treated promptly leaves most people with no lasting effect at all. The risk rises with repeated episodes and with delay, which is why the answer depends far more on how fast it was treated than on the fact that it happened.
Talk to someone, privately
Ium in Seocho supports international women with confidential, English-speaking care. Reach out with a message or a call — no pressure, no judgment.
Book a private consultationThis article is general information, not medical advice, and does not replace a consultation with a licensed doctor. Details of care and current guidance should be confirmed directly with the clinic.
