Ovarian Cancer: 6 Warning Signs You Shouldn’t Ignore

Ovarian cancer can be difficult to detect early because its symptoms are often subtle and can resemble common digestive, urinary, or menstrual problems. Importantly, having one or more of these symptoms does not mean you have ovarian cancer—many noncancerous conditions can cause them. What matters is whether a symptom is new, persistent, worsening, or unusual for you.

1. Persistent bloating or abdominal swelling

Occasional bloating after eating is common. The concern is bloating that is new, frequent, persistent, or accompanied by increasing abdominal size.

Ovarian cancer can cause fluid accumulation or changes within the abdomen, leading to a feeling of swelling or fullness. Some people describe it as suddenly finding their clothes tighter around the waist even though they have not changed their diet.

Pay particular attention if bloating:

Happens frequently rather than occasionally.
Continues for several weeks.
Is accompanied by abdominal or pelvic discomfort.
Occurs along with reduced appetite or feeling full quickly.

Persistent bloating is one of the most commonly reported symptoms of ovarian cancer, although digestive disorders are much more common causes.

2. Pelvic or abdominal pain or pressure

New, unexplained pain, aching, discomfort, or pressure in the lower abdomen or pelvis should not simply be ignored, particularly when it persists.

The pain may:

Be dull or aching rather than severe.
Come and go initially.
Be felt on one side or throughout the lower abdomen.
Occur together with bloating or changes in bowel or bladder habits.

Ovarian cancer can produce abdominal or pelvic pressure as a tumor grows or affects surrounding tissues. However, ovarian cysts, fibroids, endometriosis, urinary problems, gastrointestinal conditions, and other disorders can cause similar sympto

3. Feeling full unusually quickly or difficulty eating

Another potentially important symptom is feeling full after eating only a small amount, or having a noticeable decrease in appetite.

For example, you may normally eat a complete meal but suddenly find that you become uncomfortably full after a few bites.

This can occur because ovarian or related abdominal disease may affect the digestive system or create pressure within the abdomen. It is particularly worth discussing with a healthcare professional when it occurs alongside persistent bloating or abdominal/pelvic pain.

4. Changes in urination

Ovarian cancer can sometimes cause urinary frequency or urgency, such as:

Needing to urinate much more often than usual.
Suddenly having a strong urge to urinate.
Feeling pressure on the bladder.
Having urinary symptoms without an obvious explanation.

This happens because an ovarian mass or changes in the pelvis can affect nearby organs, including the bladder.

Urinary frequency is extremely common and is often caused by conditions such as urinary tract infections, overactive bladder, diabetes, or other problems. The important clue is a persistent change from your normal pattern, particularly when it occurs together with other ovarian-cancer symptoms.

5. Unusual vaginal bleeding or discharge

Unexpected vaginal bleeding should be evaluated, especially bleeding after menopause.

Examples include:

Bleeding between periods.
Periods that become unusually heavy or prolonged.
Vaginal bleeding after menopause.
Vaginal discharge that is unusual for you.

Abnormal bleeding is not specific to ovarian cancer and can have many other causes. In fact, cervical, uterine, hormonal, and benign gynecologic conditions can cause it. Nevertheless, the CDC recommends contacting a healthcare professional promptly for unusual vaginal bleeding, particularly after menopause.

6. Persistent digestive or bowel changes

Changes in bowel function can sometimes accompany ovarian cancer. These may include:

New or persistent constipation.
Increased gas or indigestion.
Changes in normal bowel habits.
Abdominal discomfort associated with bowel movements.

The key is a persistent change that is unusual for you, rather than an isolated episode of constipation or indigestion. Ovarian cancer can affect the gastrointestinal tract directly or indirectly because the ovaries are located close to the bowel and other abdominal structures.

Other symptoms worth knowing

Ovarian cancer can also be associated with:

Persistent fatigue.
Back pain.
Pain during sex.
Upset stomach or indigestion.
Abdominal swelling accompanied by unexplained weight loss.
Menstrual changes.

These symptoms are not diagnostic of ovarian cancer. Many common medical conditions can produce them.

When should you see a doctor?

A useful rule is to pay attention to what is normal for your body. The CDC advises talking with a doctor when ovarian-cancer-type symptoms are unusual for you and persist for 2 weeks or longer. Unusual vaginal bleeding warrants medical attention promptly.

You should especially make an appointment if several symptoms occur together—for example:

persistent bloating + pelvic pain + feeling full quickly + increased urination.

You don’t need to wait until symptoms become severe.

Is there a screening test for ovarian cancer?

This is an important distinction: there is currently no reliable routine screening test for ovarian cancer in women who have no symptoms. A Pap test screens for cervical cancer; it is not a screening test for ovarian cancer.

When symptoms are present, a clinician may consider diagnostic tests depending on the situation. These can include a pelvic examination, transvaginal ultrasound, blood testing such as CA-125, and—when indicated—additional imaging or biopsy. No single symptom or blood test by itself establishes an ovarian-cancer diagnosis.

Who may have a higher risk?

Risk can be increased by factors such as:

Increasing age.
A strong family history of ovarian or breast cancer.
Inherited gene changes such as BRCA1 or BRCA2.
Lynch syndrome.
A personal history of certain cancers or conditions such as endometriosis.

If you have a strong family history of ovarian or breast cancer, discussing your family history and whether genetic counseling/testing is appropriate with a healthcare professional can be particularly important.

Bottom line

The six symptoms to remember are:

Persistent bloating or abdominal swelling
Pelvic or abdominal pain/pressure
Feeling full quickly or difficulty eating
New urinary frequency or urgency
Unusual vaginal bleeding or discharge
Persistent bowel or digestive changes

Having these symptoms does not mean you have ovarian cancer. But if they are new, persistent, worsening, or different from your normal pattern, they deserve medical evaluation rather than being repeatedly attributed to aging, diet, stress, or indigestion. Early ovarian cancer may cause few or no symptoms, which is one reason persistent changes should be discussed with a healthcare professional.

If you are currently experiencing symptoms, particularly new abdominal/pelvic pain, persistent bloating, or bleeding after menopause, contact your healthcare professional for an evaluation.