Diagnosis

The changes that lead to cervical cancer develop slowly. Screening tests performed during regular gynecologic examinations can detect early changes.

Pap Smear

Every year in the US about 50 million women have a Papanicolaou test (the Pap smear). Use of the Pap smear has reduced the annual death rate from cervical cancer from 26,000 in 1941 to 3,700 in 2005. Forty percent of the fail to follow-up for retesting and treatment.

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Most cases of cervical cancer occur in women who have not had regular Pap tests.

The Procedure. The most accurate results seem to be obtained 12 to 14 days after menstruation begins. Women should not douche or have intercourse within 48 hours of the test. Douches and spermicidal creams may clean out abnormal cells and interfere with the results of a Pap smear. (In general, douching is not recommended at all.) A Pap smear is usually painless, although some women may have some discomfort.

• The test is done in a doctor's office. The woman removes her clothes from the waist down and puts on a medical gown. She lies on her back on the examination table, bends her knees, and puts her feet in supports (called stirrups) at the end of the table.
• A doctor inserts a metal device into her vagina to widen it.
• Using a spatula, brush, or both, the doctor gently scrapes the surface of the cervix, and sometimes the upper vagina, to gather living cells. The doctor will also obtain cells from inside the cervical canal. Such cells include squamous and glandular cells and those that lie higher up in the cervical canal (known as the endocervix). Using both a brush and spatula helps gather better samples to detect the presence of cancer.
• The cells are preserved, stained for microscopic viewing, and then analyzed under a microscope by a specialist known as a cytopathologist.

A Pap test is a simple, relatively inexpensive procedure that can easily detect cancerous or precancerous conditions.

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