Understanding Pelvic Pain: Acute, Cyclic and Chronic
Pelvic pain is very common and can affect your daily life, work, sleep, relationships, and mood. It can feel different depending on how it starts and how long it lasts. This page explains the main types—sudden (acute), monthly (cyclic), and ongoing (chronic)—so you know when and how to get help.
Sudden Pelvic Pain (Acute Pain)
Sudden pelvic pain starts quickly, feels sharp or strong, and usually lasts only a short time—from hours to a few days. It is often the body’s way of signaling a specific problem that needs quick attention. You may also feel nauseous, vomit, sweat, feel anxious, have a fever, or notice other signs of infection or inflammation.
How We Check Sudden Pelvic Pain
Your doctor will ask detailed questions about the pain: where it is, what it feels like, when it started, and any other symptoms such as unusual bleeding, discharge, pregnancy signs, stomach or urinary problems, fever, dizziness, fainting, or shoulder pain (which can sometimes mean internal bleeding).
You will have a physical exam that includes checking your temperature, heart rate, and blood pressure, plus an abdominal and pelvic exam. Additional lab testing will usually be required, including a pregnancy test, blood test to check for anemia or infection, and a urine test. Depending on your history and physical examination findings, a test for sexually transmitted infections may be required. An ultrasound of the pelvis to look at the uterus and ovaries will generally be performed. This is the test we use first.
In some cases, a CT scan may be needed if the ultrasound or exam results are not clear.
Common Causes of Sudden Pelvic Pain in Women
1. Problems Related to Pregnancy
– Ectopic pregnancy: The pregnancy grows outside the womb. This can cause pain and spotting or bleeding. If it ruptures, the pain suddenly gets much worse and can be life-threatening because of internal bleeding and shock. Doctors always check for this in any woman who could be pregnant and has pain or bleeding.
– Miscarriage (threatened or incomplete): This often causes cramping pain and bleeding. Sometimes tissue passes. Heavy bleeding can cause weakness or dizziness from blood loss.
2. Infections
– Endometritis: Infection or inflammation inside the uterus. It is more common after a miscarriage, delivery, or cesarean birth, but can happen at other times.
– Pelvic inflammatory disease (PID): An infection higher up in the reproductive organs, often from a sexually transmitted infection.
– Tubal-ovarian abscess: A serious worsening of PID where pus collects around the tubes and ovaries. This usually needs hospital treatment with strong antibiotics given through an IV, and sometimes surgery.
3. Problems with the Ovaries or Tubes
– Bleeding inside an ovarian cyst: A cyst on the ovary can bleed internally. If it is stable and there is little free fluid, it often gets better on its own with pain medicine such as ibuprofen.
– Ovarian torsion: The ovary twists on itself, cutting off its blood supply. This is an emergency that needs surgery right away. It is more likely if a cyst is larger than 5 cm.
– Ruptured ovarian cyst: When a cyst breaks open. Some mild cases can be watched closely in the hospital with repeat checks and blood tests. More serious cases with heavy internal bleeding need surgery.
Monthly Pelvic Pain (Cyclic Pain)
This type of pain happens around your period. The most common cause is painful periods.
– Primary painful periods: No underlying problem is found. The pain is usually not severe and does not get worse over time. It often improves with simple changes such as heat, rest, diet adjustments and pain relievers.
– Secondary painful periods: Caused by another condition, often endometriosis. The pain tends to get worse over the years. On exam the doctor may feel tenderness, nodules, or a tilted uterus. Ultrasound may show special cysts called “chocolate cysts,” but a normal ultrasound does not rule out endometriosis because many cases involve only scar tissue or inflammation during periods.
Mid-Cycle Pain
Some women feel mild to moderate pain around the middle of their cycle when an egg is released from the ovary (ovulation). This is called mittelschmerz. It usually goes away on its own and needs only rest and simple pain relief.
Other Possible Causes
Problems outside the reproductive organs can also cause pelvic pain, such as appendicitis, stomach or bowel issues, urinary tract infections, or kidney stones. Your doctor will help figure out the exact cause so the right treatment can be given.
When to Get Help Right Away
Go to the emergency room immediately if:
– The pain starts suddenly and is very severe
– You have heavy bleeding, especially if you might be pregnant
– You have fever, vomiting that won’t stop, or cannot keep fluids down
– You feel dizzy, faint, or very weak
Most sudden pelvic pain has a clear cause and gets better once it is treated.
However, if pain keeps coming back or lasts for many months, it may be ongoing (chronic) pelvic pain, which needs a different, more complete approach.
Ongoing (Chronic) Pelvic Pain
Chronic pelvic pain lasts 6 months or longer and can interfere with your normal activities. It is often caused by more than one factor and may involve changes in how the nervous system processes pain signals, so the pain can feel stronger than the actual tissue damage would suggest. If you are looking for information specifically about chronic pelvic pain, you can find it here.
Take the Next Step
If you are worried about any type of pelvic pain, please schedule a consultation. We will listen carefully, perform a thorough evaluation, and work with you to create a plan that fits your life and needs—whether the pain is new and sudden or has been going on for a while.
References
1. Berek JS, editor. Berek & Novak’s gynecology. 17th ed. Philadelphia: Wolters Kluwer; 2025.
2. American College of Obstetricians and Gynecologists’ Committee on Practice Bulletins—Gynecology. Chronic pelvic pain. ACOG Practice Bulletin No. 218. Obstet Gynecol. 2020 Mar;135(3):e98-e109. Reaffirmed 2026.
3. American College of Obstetricians and Gynecologists. Chronic pelvic pain. FAQ099. Washington, DC: ACOG; 2025 Oct [updated 2025 Oct]. Available from: https://www.acog.org/womens-health/faqs/chronic-pelvic-pain.
Maternal–Fetal Medicine Specialist in Bangkok
Dr. Narisra Srikureja Firer, M.D. (Dr. Niti)
Dr. Niti is a Bangkok-based OBGYN with subspecialty training in Maternal–Fetal Medicine (MFM). She provides comprehensive care for women across all stages of life, including pregnancy care, deliveries, and general gynecological conditions.
She dedicates her time to private practice at Mission Hospital and serves as a Maternal–Fetal Medicine Consultant at a large government tertiary care center.
Read Full Biodata →
