Ovarian cancer is the most lethal gynecologic malignancy in the United States. Approximately 19,000 women are diagnosed and 13,000 die from it each year. The five-year survival rate for Stage III ovarian cancer — the stage at which most women are diagnosed — is approximately 29 percent. The five-year survival rate for Stage I ovarian cancer is greater than 90 percent. The difference in outcome between early and late stage is not primarily a function of tumor biology. It is primarily a function of when the diagnosis is made.
There is no reliable population-based screening test for ovarian cancer. No combination of CA-125 and transvaginal ultrasound has been shown to reduce ovarian cancer mortality in the general population. The practical implication of this is that early detection depends on recognition of symptoms — by women who know what to watch for and by clinicians who include ovarian cancer in the differential when those symptoms are present.
The symptoms of ovarian cancer are real, recognizable, and distinguishable from the incidental gastrointestinal and bloating symptoms of daily life — by their persistence, their combination, and their frequency. Knowing them is the most effective tool available to the general population for improving ovarian cancer outcomes.
The Ovarian Cancer National Alliance and the Society of Gynecologic Oncology have identified four key symptoms that are reported significantly more frequently by women with ovarian cancer than by women in the general population. The critical distinguishing feature of these symptoms as ovarian cancer warning signs is persistence — they occur more than 12 times per month, represent a change from your normal baseline, and have been present for less than a year.
1. Pelvic or Abdominal Bloating
Abdominal bloating that is new, persistent, and not explained by diet or gastrointestinal patterns — particularly a sense of abdominal fullness or visible distension that was not present before — is the most commonly reported ovarian cancer symptom. It reflects either ascites (fluid accumulation in the abdominal cavity from peritoneal spread) or the physical bulk of the tumor itself. The problem is that bloating is also one of the most common benign symptoms — which is why persistent bloating that represents a change from the baseline and occurs frequently (not occasionally after a large meal) is the specific pattern to attend to.
2. Pelvic or Abdominal Pain
New, persistent pelvic or lower abdominal pain or pressure that is different from prior menstrual-related pain or from prior gastrointestinal patterns warrants evaluation. The pain of ovarian cancer is often described as a dull, persistent pressure or heaviness rather than sharp pain. Its persistence — present daily or near-daily for weeks — is the distinguishing feature from the intermittent cramping of normal bowel function or ovulation.
3. Difficulty Eating or Feeling Full Quickly
New difficulty eating normal amounts of food, feeling full quickly after starting to eat, or persistent loss of appetite are gastrointestinal symptoms that can reflect the mass effect of ovarian tumors on the stomach and bowel, or the systemic effects of cancer. Many women and their clinicians attribute these symptoms to gastrointestinal conditions — irritable bowel, gastritis, dietary changes — without considering ovarian cancer, particularly when the woman is younger. The combination of this symptom with bloating and pelvic discomfort significantly increases the clinical index of suspicion.
4. Urinary Urgency or Frequency
New urinary urgency or frequency — the need to urinate more often than usual or the urgent sensation that cannot be deferred — without evidence of infection can reflect the pressure of a pelvic mass on the bladder. This symptom in isolation is more likely to reflect overactive bladder or urinary tract infection, but in combination with the other ovarian cancer warning signs and in the absence of an identified urinary cause, it warrants pelvic evaluation.
Additional Symptoms That May Occur
Additional symptoms that some women with ovarian cancer report include: fatigue that is new and persistent; back pain that is lower and persistent without a musculoskeletal explanation; constipation or changes in bowel patterns; menstrual irregularity in premenopausal women; and pain during intercourse. These symptoms are individually more common from benign causes, but their combination with the four primary warning signs — or their occurrence in a woman with known risk factors for ovarian cancer — warrants clinical evaluation.
The Rule of Persistence
The most important single rule for ovarian cancer symptom recognition is: if you have had any of these symptoms more than 12 times per month for less than a year, and they represent a change from your prior baseline, see your gynecologist. This is not about occasional bloating after a large meal or one day of feeling full. It is about symptoms that have become a new pattern in your daily life. Ovarian cancer recognized at Stage I is highly curable. The same cancer recognized at Stage III is not. The difference in many cases comes down to whether the woman in the early-stage window recognized and acted on these symptoms.
Contact our office within 1 to 2 weeks if you have had any of the following more than 12 times per month for less than one year:
- New, persistent pelvic or abdominal bloating or distension
- New, persistent pelvic or abdominal pain or pressure
- Persistent difficulty eating or early satiety
- New urinary urgency or frequency without infection
Seek urgent evaluation if symptoms are severe, rapidly worsening, or accompanied by significant abdominal swelling.
Lapeer: (810) 969-4670 · Rochester Hills: (248) 923-3522While most ovarian cancer occurs in women without identifiable hereditary risk, understanding the risk factors that increase individual risk helps contextualize why the symptoms above warrant greater urgency in certain women.
Hereditary Risk — BRCA Mutations and Lynch Syndrome
BRCA1 mutations confer a lifetime ovarian cancer risk of 40 to 46 percent. BRCA2 mutations confer a risk of 11 to 27 percent. Lynch syndrome confers a risk of 5 to 15 percent. In aggregate, hereditary mutations account for approximately 15 to 20 percent of all ovarian cancer cases. Women with these mutations require specific surveillance and should discuss the timing of risk-reducing salpingo-oophorectomy with Dr. Andrei. Learn about genetic testing →
Age
Ovarian cancer risk increases with age. The majority of ovarian cancers occur in postmenopausal women, with the median age at diagnosis around 63. However, ovarian cancer does occur in premenopausal women, and symptoms in younger women should not be dismissed on the basis of age.
Reproductive History
Factors that reduce the total number of ovulatory cycles over a lifetime reduce ovarian cancer risk: pregnancy, breastfeeding, and oral contraceptive use. Combined oral contraceptives reduce ovarian cancer risk by approximately 50 percent with 5 or more years of use, with the protective effect persisting for decades after discontinuation. Nulliparity and late first pregnancy are associated with mildly elevated ovarian cancer risk.
Endometriosis
Endometriosis is associated with a modestly elevated risk of the endometrioid and clear cell subtypes of ovarian cancer. The absolute risk elevation from endometriosis is small but real, and women with endometriosis who develop new pelvic symptoms that are different from their established endometriosis pattern warrant evaluation that considers ovarian cancer in the differential.
The women who survive ovarian cancer at the highest rates are overwhelmingly those diagnosed at Stage I — when the cancer is confined to one or both ovaries, before it has spread to the peritoneum, lymph nodes, or distant organs. Stage I ovarian cancer is diagnosed in a minority of ovarian cancer patients nationally. It can be diagnosed more frequently when women know the symptoms and seek evaluation before the disease advances.
If you have persistent symptoms that match the ovarian cancer warning sign pattern, do not wait for your next scheduled well-woman visit to mention them. Contact Lapeer Women’s Health directly. Both our Lapeer and Rochester Hills offices are available for prompt evaluation. No referral required.
Our team at Lapeer Women’s Health evaluates ovarian cancer symptoms without delay at both offices. No referral required.
Schedule a Gynecologic VisitEducational purposes only. Not medical advice. Content reviewed by Dr. Ramona D. Andrei, MD PhD FACOG.
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2710 S Rochester Rd, Suite 2
Rochester Hills, MI 48307
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