Cervical Cancer Library
Learn about Cervical Cancer
Cervical cancer is a disease in which malignant (cancer) cells form in the tissues of the cervix.
The cervix is the lower, narrow end of the uterus (the hollow, pear-shaped organ where a fetus grows). The cervix leads from the uterus to the vagina (birth canal).
Cervical cancer usually develops slowly over time. Before cancer appears in the cervix, the cells of the cervix go through changes known as dysplasia, in which abnormal cells begin to appear in the cervical tissue. Over time, the abnormal cells may become cancer cells and start to grow and spread more deeply into the cervix and to surrounding areas.
Cervical cancer in children is rare. For more information, see the PDQ summary on Unusual Cancers of Childhood Treatment.
Human papillomavirus (HPV) infection is the major risk factor for cervical cancer.
Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your doctor if you think you may be at risk.
Infection of the cervix with human papillomavirus (HPV) is almost always the cause of cervical cancer. Not all women with HPV infection, however, will develop cervical cancer. Women who do not regularly have tests to detect HPV or abnormal cells in the cervix are at increased risk of cervical cancer. There are two vaccines to prevent HPV in girls and young women who do not have HPV. For more information, see the PDQ summary on Cervical Cancer Prevention.
Other possible risk factors include the following:
- Giving birth to many children.
- Having many sexual partners.
- Having first sexual intercourse at a young age.
- Smoking cigarettes.
- Using oral contraceptives ("the Pill").
There are usually no signs or symptoms of early cervical cancer but it can be detected early with regular check-ups.
Early cervical cancer may not cause signs or symptoms. Women should have regular check-ups, including tests to check for HPV or abnormal cells in the cervix. The prognosis (chance of recovery) is better when the cancer is found early.
Signs and symptoms of cervical cancer include vaginal bleeding and pelvic pain.
These and other signs and symptoms may be caused by cervical cancer or by other conditions. Check with your doctor if you have any of the following:
- Vaginal bleeding (including bleeding after sexual intercourse).
- Unusual vaginal discharge.
- Pelvic pain.
- Pain during sexual intercourse.
Tests that examine the cervix are used to detect (find) and diagnose cervical cancer.
The following procedures may be used:
- Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
- Pelvic exam: An exam of the vagina, cervix, uterus, fallopian tubes, ovaries, and rectum. The doctor or nurse inserts one or two lubricated, gloved fingers of one hand into the vagina and places the other hand over the lower abdomen to feel the size, shape, and position of the uterus and ovaries. A speculum is also inserted into the vagina and the doctor or nurse looks at the vagina and cervix for signs of disease. A Pap test of the cervix is usually done. The doctor or nurse also inserts a lubricated, gloved finger into the rectum to feel for lumps or abnormal areas.
- Pap test: A procedure to collect cells from the surface of the cervix and vagina. A piece of cotton, a brush, or a small wooden stick is used to gently scrape cells from the cervix and vagina. The cells are viewed under a microscope to find out if they are abnormal. This procedure is also called a Pap smear.
- Human papillomavirus (HPV) test: A laboratory test used to check DNA or RNA for certain types of HPV infection. Cells are collected from the cervix and DNA or RNA from the cells is checked to find out if an infection is caused by a type of HPV that is linked to cervical cancer. This test may be done using the sample of cells removed during a Pap test. This test may also be done if the results of a Pap test show certain abnormal cervical cells.
- Endocervical curettage: A procedure to collect cells or tissue from the cervical canal using a curette (spoon-shaped instrument). Tissue samples may be taken and checked under a microscope for signs of cancer. This procedure is sometimes done at the same time as a colposcopy.
- Colposcopy: A procedure in which a colposcope (a lighted, magnifying instrument) is used to check the vagina and cervix for abnormal areas. Tissue samples may be taken using a curette (spoon-shaped instrument) and checked under a microscope for signs of disease.
- Biopsy: If abnormal cells are found in a Pap test, the doctor may do a biopsy. A sample of tissue is cut from the cervix and viewed under a microscope by a pathologist to check for signs of cancer. A biopsy that removes only a small amount of tissue is usually done in the doctor’s office. A woman may need to go to a hospital for a cervical cone biopsy (removal of a larger, cone-shaped sample of cervical tissue).
Certain factors affect prognosis (chance of recovery) and treatment options.
The prognosis (chance of recovery) depends on the following:
- The stage of the cancer (the size of the tumor and whether it affects part of the cervix or the whole cervix, or has spread to the lymph nodes or other places in the body).
- The type of cervical cancer.
- The patient's age and general health.
- Whether the patient has a certain type of human papillomavirus (HPV).
- Whether the patient has human immunodeficiency virus (HIV).
- Whether the cancer has just been diagnosed or has recurred (come back).
Treatment options depend on the following:
- The stage of the cancer.
- The type of cervical cancer.
- The patient's desire to have children.
- The patient’s age.
Treatment of cervical cancer during pregnancy depends on the stage of the cancer and the stage of the pregnancy. For cervical cancer found early or for cancer found during the last trimester of pregnancy, treatment may be delayed until after the baby is born. For more information, see the section on Cervical Cancer During Pregnancy.