Ovarian Cysts in Black Women: Types, Torsion, and Next Steps

An ovarian cyst is a fluid-filled sac in or on an ovary, and most of them are a byproduct of ovulation working exactly as designed. Functional cysts, the most common kind, usually cause no symptoms and clear on their own within 6 to 8 weeks. In a University of Kentucky screening program that tracked 39,337 women with repeat transvaginal ultrasound, cysts turned up in 34.9% of premenopausal participants, and most of the abnormalities found resolved without any treatment, including some that looked complex on the first scan. A cyst on a report is not a diagnosis. What matters is the type, how it looks on imaging, and whether it is causing the one emergency in this article that is measured in hours.

Every menstrual cycle, a follicle grows, releases an egg, and collapses into a corpus luteum. Two ordinary failures of that sequence produce the two functional cysts. A follicular cyst forms when the follicle does not rupture at ovulation. A corpus luteum cyst forms when the corpus luteum does not dissolve afterward. Roughly 70% to 80% of follicular cysts go away on their own. If a cyst is still there after several menstrual cycles, it is probably not a functional cyst, and that is the point at which it earns a closer look.

Size guides how closely a simple cyst is watched, not whether it is dangerous. The Society of Radiologists in Ultrasound consensus update says that in premenopausal women, simple cysts are worth documenting at 3 cm, and follow-up imaging is recommended only above 5 to 7 cm. Among 931 premenopausal women whose unilocular cysts were surgically removed and examined, 0.54% were malignant. The overwhelming default for a simple cyst before menopause is benign.

Four categories cover nearly everything.

Functional cysts (follicular and corpus luteum) are cycle-driven, usually silent, and self-limited. Endometriomas are cysts of endometriosis, filled with old blood, sometimes called chocolate cysts, and they have a distinctive ground-glass look on ultrasound. Mature cystic teratomas, commonly called dermoids, contain tissue from all three germ layers and account for more than 10% of all ovarian neoplasms; malignant change happens in 1% to 2% of cases. Cystadenomas grow from the surface cells of the ovary, are usually benign, and can get large. A simple cyst that keeps growing is most likely a cystadenoma.

The practical difference is persistence. Functional cysts leave. The other three do not, and a cyst still on the scan three months later belongs in that second group until imaging says otherwise.

Ovarian torsion is the ovary twisting on the ligaments that hold it, which cuts off its own blood supply. It is a true surgical emergency that can end in necrosis, loss of the ovary, and infertility if it is not caught quickly. The single biggest risk factor is an ovarian mass 5 cm across or larger, which is why a large cyst matters even when it is completely benign.

The presentation is sudden lower abdominal or pelvic pain, usually on one side, frequently with nausea and vomiting. The pain can also come and go, because an ovary can twist and untwist. Ultrasound with Doppler is the imaging study of choice and both transvaginal and pelvic views should be done, but its sensitivity runs around 84%, so a normal scan does not rule torsion out. If the clinical picture fits, that call gets made in the operating room, not on the scan.

The surgical goal is to save the ovary. Detorsion with the adnexa preserved is the management of choice, and after detorsion the ovary is found to be functional in more than 90% of patients. Removing the ovary is not the default.

A cyst can also rupture, causing sudden severe pain, often with nausea and vomiting. Most ruptures are uncomplicated, and a person with stable vital signs and mild to moderate symptoms can be managed expectantly rather than operated on. Get seen anyway: rupture, torsion, appendicitis, and ectopic pregnancy are not distinguishable from the couch.

Fibroids are the background condition of Black women's gynecologic care. In an ultrasound screening study that looked for fibroids regardless of symptoms, the estimated cumulative incidence by age 50 was above 80% for Black women, and they developed at earlier ages. That is a real burden and it deserves real treatment. It also creates a diagnostic shortcut: when a Black woman reports pelvic pain, pressure, or a mass, there is usually already a fibroid on file to explain it.

A fibroid diagnosis says nothing about your ovaries. The two conditions coexist constantly, and the ultrasound report should describe the uterus and both ovaries separately. If yours does not, that is the question to bring back: what did the scan show on the right ovary and the left ovary. Our guide to the fibroid burden and what treatment actually looks like covers the other half of this.

The second problem is that the pain itself gets discounted. In interviews with 30 Black women living with chronic pelvic pain from fibroids, endometriosis, adenomyosis, and other causes, the themes of dismissal and normalization of their pain appeared 70 times across social and medical settings, alongside a theme the researchers named self-advocacy: the felt necessity of fighting for recognition and adequate care. That is not a perception problem. A study of medical students and residents found that a substantial share endorsed false beliefs about biological differences between Black and white people, and those beliefs tracked with less accurate pain assessment and worse treatment recommendations for Black patients.

The failure mode that follows is specific: pain gets normalized, the fibroid absorbs the explanation, the ovaries never get scrutinized, and a persistent cyst goes unwatched.

Ultrasound is the test. A transducer placed in the vagina or on the abdomen shows the size, shape, and location of a cyst and whether it is fluid-filled or has solid components. That description, simple versus complex, is what drives everything that follows.

CA-125 is a blood test, not a screening test, and before menopause it is close to useless on its own. CA-125 rises in benign ovarian cysts, endometriosis, fibroids, pelvic inflammatory disease, tubo-ovarian abscess, ectopic pregnancy, ovarian hyperstimulation, and ordinary pregnancy. It is a marker of peritoneal irritation, not of cancer. For a premenopausal Black woman likely to have fibroids and possibly endometriosis or a history of pelvic infection, an elevated CA-125 is close to expected and should not by itself trigger surgery. ACOG guidance on adnexal masses treats it as one input among several, weighted differently before and after menopause. If someone hands you a number and a scary sentence, the follow-up question is what the ultrasound showed.

Watchful waiting means a repeat ultrasound to see whether the cyst changed in size or appearance, on an interval your clinician sets. Many cysts are gone after one or two cycles. Serial-ultrasound data support this directly: many ovarian abnormalities resolve even when the first scan looks complex, solid, or bilateral, which is the argument against treating one abnormal scan as a reason to operate.

Birth control pills will not speed that up. A Cochrane review of eight randomized trials covering 686 women found that combined oral contraceptives did not hasten resolution of functional ovarian cysts in any trial, whether the cyst arose spontaneously or after ovulation induction. Most cysts resolved without treatment. Oral contraceptives can reduce how often new functional cysts form, which is a different claim, and worth taking on those terms.

Surgery comes up when a cyst is very large, is causing symptoms, or looks concerning for cancer. There are two operations and the difference is permanent. A cystectomy removes the cyst and leaves the ovary. An oophorectomy removes the ovary. ACOG is explicit that the choice depends on the size of the cyst, your age, your desire to have children, and your family history of ovarian or breast cancer. If a cyst is thought to be benign, minimally invasive laparoscopic surgery is recommended.

Ask these before you sign, and ask for the answers in the operative plan, not in conversation: Is the plan a cystectomy or an oophorectomy? Under what findings would you remove the ovary instead? What would that mean for my fertility and my hormones? Can this be done laparoscopically? If torsion is the reason for surgery, is detorsion with ovarian preservation the plan?

Ordinary cysts are not cancer. Among unilocular cysts that were removed surgically, the malignancy rate was about 1% overall and 0.54% in premenopausal women. Nothing in this article should read as a reason to fear a routine finding.

Two facts sit alongside that. Ovarian cancer is usually found late: 54% of cases are already distant-stage at diagnosis in SEER data, and 5-year relative survival is 91.9% when it is caught localized and 31.5% once it has spread. And survival for Black women with epithelial ovarian cancer in the United States has not kept pace with the overall picture, which is why the African American Cancer Epidemiology Study was built as a dedicated multi-site cohort of Black patients. Research into the causes points at healthcare access, specifically access to guideline-adherent surgery and chemotherapy, as a measurable driver rather than an unexplained one.

The practical translation is not to test more, it is to not let a mass drift. A cyst that persists, grows, has solid areas or septations, or comes with bloating, early fullness, or pelvic pressure that does not go away is a reason for prompt gynecologic evaluation, and for referral to a gynecologic oncologist when the imaging and clinical findings warrant it. Our explainer on ovarian cancer symptoms and outcomes for Black women goes into what that referral involves.

Bring specifics. A dated log of the pain, which side, what makes it worse, and whether nausea comes with it does more than any adjective. Ask for the ultrasound report itself, not the summary, and read what it says about each ovary. If a cyst is found, write down its size and whether it was called simple or complex, then ask for the follow-up interval and calendar it yourself.

If you have been told your pain is normal more than once, change who is looking at it. You can find a Black OB-GYN or gynecologic specialist in our provider directory, filtered by location and specialty. A clinician who takes the first report seriously is the difference between a cyst that gets watched and a cyst that gets forgotten.