Can an endometrioma rupture?

Yes—an ovarian endometrioma (often called a “chocolate cyst”) can rupture, although it’s not the most common course. When it ruptures, the thick, inflammatory cyst contents can spill into the pelvic cavity and trigger sudden, severe pain and significant irritation. People may describe it as a sharp one-sided pelvic pain that comes on abruptly, sometimes with bloating, nausea, or a feeling that “something is very wrong.” Because other urgent problems can feel similar (like ovarian torsion, a ruptured non-endo cyst, or appendicitis), the situation needs prompt evaluation.

If you suspect a rupture or you develop a sudden escalation in pain—especially with fever, faintness, vomiting, shoulder pain, or worsening abdominal swelling—don’t try to “wait it out.” Our team can help you determine what’s happening, use the right imaging and exam to clarify the cause, and decide whether monitoring, targeted medical support, or surgery is the safest next step. If you’re living with an endometrioma and worry about rupture risk, recurrence, or fertility impact, we can also discuss longer-term options such as excision-based surgical management or less invasive approaches in carefully selected cases.