Most Common Type Of Cervical Cancer In Women
Cervical cancer is a cancer arising from the cervix. It is
due to the abnormal development of cells that have the capacity to invade or spread to other parts of the body. Early on there are typically no symptoms.
Later symptoms may include: abnormal
vaginal bleeding, pelvic pain or
pain during sexual intercourse. Bleeding after sex may be
not severe; however, may also be due
to cervical cancer. Human papillomavirus (HPV) infection appears to be mixed up in the development of more than 90% of cases; most people who have had
HPV infections, however, do not develop cervical cancer. Other risk factors
include: smoking, a weak immune system, birth control pills, starting sex at a young age and having
many sexual partners, but these are
less important. Cervical cancer typically develops from precancerous changes
over 10 to 20 years. There are a few types of cervical cancer. About 90% are squamous cell carcinomas, 10% are adenocarcinoma and a small
number are other types. Diagnosis is typically by cervical screening followed
by a biopsy. Medical imaging is then
done to determine whether or not the cancer has spread.
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Worldwide, cervical cancer is both the fourth
most general cause of cancer and the fourth most common cause of death from
cancer in women. In 2012, it was estimated that there were 528,000 cases of cervical cancer, and 266,000 deaths. This is about 8%
of the total cases and total deaths from cancer. Approximately 70% of cervical cancers occur in
developing countries. In low income countries it is the most common cause of cancer
death. In developed countries, the widespread use of cervical screening
programs has dramatically reduced rates of cervical cancer. In medical
research, the most famous cell line known as HeLa was developed from cervical cancer cells of a woman named Henrietta Lacks.
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