A Specialist GP assesses your symptoms over a quick phone call — PID is often caused by an untreated STI, so early assessment and treatment protects your fertility. Testing and treatment can be arranged the same day.
Book a telehealth consult — free with Medicare (bulk-billed)
Get tested for the STIs that cause PID at any pathology lab Australia-wide
Prompt treatment if needed — because delay is what risks fertility
Pelvic inflammatory disease (PID) is an infection of a woman’s upper reproductive organs — the uterus (womb), fallopian tubes, ovaries and surrounding tissues. It happens when bacteria spread up from the vagina and cervix into these organs, causing inflammation. It’s a fairly common condition, particularly in younger sexually active women, and it ranges from mild to severe.
The most important thing to understand about PID is the balance it strikes: it’s very treatable with antibiotics, yet if it’s missed or treated late it can cause lasting harm, including problems with fertility. That combination — treatable but potentially serious if left — is why PID is a condition where getting seen promptly really counts.
What Causes PID?
Most PID is caused by sexually transmitted infections that have spread upwards from the cervix into the upper reproductive tract. The main causes are:
Other bacteria — including some normally found in the vagina, which can sometimes be involved.
This is the crucial link: PID is very often the complication of an untreated STI. Because chlamydia and gonorrhoea so frequently cause no symptoms, an infection can sit unnoticed and gradually ascend, with PID being the first sign that anything was wrong. That’s precisely why testing for and treating STIs early — before they have the chance to spread upwards — is the best way to prevent PID.
PID Symptoms, and Why It Matters
PID symptoms vary a lot, from barely noticeable to clearly unwell. When present, they can include:
Lower abdominal or pelvic pain — the most common symptom, often on both sides
Pain during sex, particularly felt deep inside
Unusual vaginal discharge
Abnormal bleeding — between periods, after sex, or heavier periods
Pain or discomfort passing urine
Fever and feeling generally unwell — in more significant cases
The symptoms overlap with other conditions, so they can’t confirm PID on their own — but this particular combination, especially pelvic pain with abnormal bleeding or discharge, is a clear reason to be assessed promptly.
Silent and mild PID
One of the tricky things about PID is that it can be mild or almost silent. Some women have only vague symptoms — a bit of pelvic discomfort, some spotting — or no obvious symptoms at all, while inflammation is nonetheless causing damage in the background. This “silent” PID is part of why untreated chlamydia can quietly affect fertility without an obvious illness along the way. It’s also why you shouldn’t dismiss persistent mild pelvic symptoms, and why STI testing matters even when you feel well.
Untreated or repeated PID can cause lasting harm to the reproductive organs. Inflammation can scar and damage the fallopian tubes, which leads to the serious complications of PID: infertility (scarred, blocked tubes can make it harder or impossible to conceive naturally, and the risk rises with each episode), ectopic pregnancy (tubal damage increases the risk of a pregnancy developing in the tube, which is a medical emergency), and chronic pelvic pain (long-lasting pain from scarring and ongoing inflammation). These are exactly the outcomes that prompt treatment is designed to prevent — and the reason PID is taken seriously rather than left to settle.
Diagnosis and Treatment
PID is usually diagnosed from your symptoms and an examination, rather than by a single definitive test. A clinician will ask about your symptoms and typically examine the abdomen and pelvis, checking for tenderness that points to PID. Tests for the STIs that cause it — chlamydia, gonorrhoea and mycoplasma genitalium — are taken, and sometimes a pelvic ultrasound or blood tests are used. Importantly, because delay risks damage, treatment is often started on the basis of the clinical picture before all test results are back, rather than waiting.
PID treatment
PID treatment is with antibiotics — usually a combination chosen to cover the different bacteria that can be involved, given over a couple of weeks. Most women are treated with a course of antibiotics as an outpatient; more severe cases may need hospital treatment with antibiotics into a vein. Treatment is often started promptly, based on symptoms, without waiting for all test results — because early treatment protects fertility. Complete the full course exactly as directed even once you feel better, avoid sex until you and your partner(s) have finished treatment and your clinician advises it’s safe, use rest and pain relief to ease symptoms while the antibiotics work, and attend the follow-up arranged to check you’re improving. With prompt, complete treatment, most women recover fully and avoid long-term complications.
Why you shouldn’t delay
If there’s one message to take from this page, it’s that PID is time-sensitive. Every day of delay in treating PID slightly increases the risk of permanent damage to the fallopian tubes — and with it the risk of infertility, ectopic pregnancy and chronic pain. The condition itself is very treatable; it’s the waiting that causes harm. So if you have pelvic pain with abnormal bleeding, discharge or pain during sex — especially if you might have been exposed to an STI — don’t wait to see if it settles.
Partners and follow-up
Because PID usually stems from a sexually transmitted infection, recent sexual partners need to be tested and treated too — whether or not they have symptoms — to prevent reinfection and stop the cycle. Partner notification can be handled confidentially and, where preferred, anonymously. Follow-up after treatment checks that you’ve recovered, and STI retesting may be recommended, since reinfection can lead to a further episode of PID and compound the risk to fertility.
Preventing PID
The best way to prevent PID is to prevent and promptly treat the STIs that cause it:
Regular STI testing — catching chlamydia and gonorrhoea early, before they can ascend, is the single most effective step.
Prompt treatment of any STI found, and of a partner.
Condoms, which reduce the risk of the STIs that lead to PID.
Getting checked if a partner is diagnosed with an STI, even if you feel well.
Because so much PID begins as a silent chlamydia or gonorrhoea infection, routine STI testing when you feel completely well is one of the most valuable things you can do to protect your fertility. Testing isn’t just about feeling reassured — it heads off complications like PID before they start.
When to seek urgent care
Seek urgent medical care if you have severe lower abdominal pain, a high fever, vomiting, or feel very unwell — these can indicate a severe infection or an abscess needing immediate treatment. Also seek urgent care for sudden severe one-sided pelvic pain with a missed or abnormal period, which can be a sign of an ectopic pregnancy and is a medical emergency. For milder but persistent symptoms, don’t wait them out — get assessed promptly.
Frequently asked questions
PID is an infection of a woman’s upper reproductive organs — the uterus, fallopian tubes, ovaries and surrounding tissues — caused by bacteria spreading up from the vagina and cervix. It’s common, especially in younger sexually active women, and ranges from mild to severe. It’s very treatable with antibiotics, but if missed or treated late it can cause lasting harm, including to fertility.
Most PID is caused by STIs that have spread upwards from the cervix — chlamydia is the most common cause, along with gonorrhoea and, increasingly, Mycoplasma genitalium. Other bacteria can sometimes be involved. Because chlamydia and gonorrhoea so often cause no symptoms, an infection can sit unnoticed and ascend, with PID being the first sign anything was wrong.
PID symptoms vary from barely noticeable to clearly unwell. They can include lower abdominal or pelvic pain (the most common), pain during sex felt deep inside, unusual discharge, abnormal bleeding (between periods, after sex, or heavier periods), pain passing urine, and in more significant cases fever and feeling unwell. Pelvic pain with abnormal bleeding or discharge is a clear reason to be assessed promptly.
Yes. PID can be mild or almost silent — some women have only vague symptoms like mild pelvic discomfort or spotting, or none at all, while inflammation quietly causes damage. This silent PID is part of why untreated chlamydia can affect fertility without an obvious illness. It’s why persistent mild pelvic symptoms shouldn’t be dismissed, and why STI testing matters even when you feel well.
PID is usually diagnosed from your symptoms and an examination rather than a single definitive test. A clinician asks about symptoms and typically examines the abdomen and pelvis for tenderness. Tests for the STIs that cause it are taken, and sometimes a pelvic ultrasound or blood tests. Because delay risks damage, treatment is often started on the clinical picture before all results are back.
PID is treated with antibiotics — usually a combination covering the different bacteria involved, over a couple of weeks. Most women are treated as outpatients; severe cases may need hospital treatment with antibiotics into a vein. Complete the full course, avoid sex until you and partners have finished treatment, and attend follow-up. With prompt, complete treatment, most women recover fully.
Yes — the infection itself is cured with antibiotics, and most women recover fully when PID is treated promptly and completely. The important caveat is that any damage already done to the fallopian tubes before treatment can be permanent, which is why early treatment matters so much. Curing the infection is straightforward; preventing lasting damage depends on not delaying.
It can. Inflammation from PID can scar and block the fallopian tubes, which can make conceiving harder or, in some cases, impossible, and increases the risk of ectopic pregnancy. The risk rises with each episode of PID and with delayed treatment. This is the main reason PID is taken seriously and treated promptly — early treatment is what protects fertility.
Untreated or repeated PID can cause lasting harm: scarring of the fallopian tubes leading to infertility, an increased risk of ectopic pregnancy (a medical emergency), and chronic pelvic pain. Severe untreated infection can also form an abscess needing urgent treatment. These serious outcomes are exactly what prompt antibiotic treatment is designed to prevent, so PID shouldn’t be left to settle.
Yes. Because PID usually stems from an STI, recent sexual partners need testing and treatment too, whether or not they have symptoms, to prevent reinfection and stop the cycle. Partner notification can be handled confidentially and, where preferred, anonymously, and a clinic can help. Untreated partners are a common cause of reinfection and a further episode of PID.
The best prevention is preventing and promptly treating the STIs that cause it: regular STI testing to catch chlamydia and gonorrhoea early before they ascend, prompt treatment of any STI found and of a partner, condoms to reduce risk, and getting checked if a partner is diagnosed. Because much PID begins as a silent infection, routine testing when you feel well is one of the most valuable steps.
Seek urgent care for severe lower abdominal pain, high fever, vomiting, or feeling very unwell — signs of a severe infection or abscess. Also seek urgent care for sudden severe one-sided pelvic pain with a missed or abnormal period, which can indicate an ectopic pregnancy and is an emergency. For milder but persistent symptoms, get assessed promptly rather than waiting them out.
