Diagnosis
How do I know if an ovarian cyst has burst?
The short answer
A burst ovarian cyst often causes sudden, sharp pain on one side of the lower abdomen or pelvis, but an exam and imaging are needed to know for sure. Severe or escalating pain, dizziness or fainting, shoulder-tip pain, fever, or heavy bleeding can signal an urgent problem.
A ruptured ovarian cyst often causes sudden, sharp pain on one side of the lower abdomen or pelvis, sometimes after exercise, sex, or around ovulation. The pain may then become a deeper, persistent ache over the next hours, and you can also notice bloating, nausea, or pain that worsens with movement. Some people have light vaginal spotting, while others have no bleeding at all, so the pattern and intensity of the pain matter more than spotting.
Because pelvic pain can have more than one cause (including endometriosis, an endometrioma, torsion, fibroids, or even bladder or bowel conditions), the only way to know for sure is an evaluation that combines your symptoms, imaging, and a focused exam. If you’re having severe or escalating pain, dizziness or fainting, shoulder-tip pain, fever, or heavy bleeding, that can signal significant internal bleeding or another urgent problem, and we want you assessed right away. If you’re dealing with recurrent episodes described as cyst rupture or ongoing one-sided pelvic pain, reach out to schedule a consultation with our team so we can look at the whole picture and build a plan that fits your goals.
Where to go from here
Understand it, compare it with what you're feeling, then talk it through with us.
Step 3 · Speak with Us
Don’t guess pelvic pain
Sudden one-sided pelvic pain can be a ruptured cyst—or endometriosis, endometrioma, or torsion. Our specialists can evaluate your symptoms, order the right imaging, and guide next steps for relief and safety.
Questions people ask next
All diagnosis questionsWhich endometriosis symptoms mean I should go to the ER?
Go to the ER for sudden severe pelvic or belly pain different from usual, or pain with fainting, fever, repeated vomiting or a rigid/swollen belly. Heavy bleeding soaking pads rapidly, pregnancy concerns with pelvic pain or bleeding, chest pain, shortness of breath or coughing blood also need ER care.
Can an endometrioma rupture?
Yes, an ovarian endometrioma can rupture, although it’s not the most common course. Its contents can spill into the pelvis and cause sudden, severe pain and irritation, which needs prompt evaluation because other urgent problems can feel similar.
Is my pelvic pain from an ovarian cyst or endometriosis?
Ovarian cyst and endometriosis pain can overlap, and some people have both. Cyst pain is often more one-sided, while endometriosis pain more often follows a cyclical pattern. Imaging can identify many cysts, but normal imaging doesn’t rule out endometriosis.
Further reading
Endometrioma (Chocolate Cyst): Ultrasound Clues and When to Treat
Discover vital ultrasound clues and treatment options for endometriomas (chocolate cysts) related to endometriosis. Learn about fertility and pain management.
What Else Could It Be? Ruling Out Other Causes
Explore essential insights on endometriosis and other causes of pelvic pain. Learn about differential diagnoses and effective treatment options.
Can Scans and Tests Find Endometriosis? Know the Limits
Discover why ultrasounds may miss endometriosis. Learn about imaging limits and recent research in our latest blog. Find clarity in your diagnosis.





