Cervical cancer is a type of cancer that develops
in a woman's cervix (the entrance to the womb from the vagina). Cancer of the cervix often has no symptoms in its
early stages. If you do have symptoms, the most common is unusual vaginal
bleeding, which can occur after sex, in between periods or after the menopause.
Abnormal bleeding doesn't mean that you definitely
have cervical cancer, but it should be investigated by your doctor/ GP as soon as
possible. If your GP thinks you might have cervical cancer, you should be
referred to see a specialist within two weeks.
Screening
for cervical cancer
Over the course of many years, the cells lining the
surface of the cervix undergo a series of changes. In rare cases, these
precancerous cells can become cancerous. However, cell changes in the cervix
can be detected at a very early stage and treatment can reduce the risk of
cervical cancer developing.
The NHS offers a cervical screening
programme to all women from the age of 25. During cervical screening
(previously known as a "smear test"), a small sample of cells is
taken from the cervix and checked under a microscope for abnormalities. An abnormal cervical screening test doesn't mean
you definitely have cancer. Most abnormal results are caused by an
infection or the presence of treatable precancerous cells, rather than cancer
itself.
Women aged 25 to 49 years of age are offered
screening every three years, and women aged 50 to 64 are offered screening
every five years. For women who are 65 or older, only those who
haven't been screened since they were 50, or those who have had recent abnormal
tests, are offered screening. You should be sent a letter confirming when your
screening appointment is due. Contact your GP if you think you may be overdue
for a screening appointment.
What
causes cervical cancer?
Almost all cases of cervical cancer are caused by
the human papilloma virus (HPV). HPV is a very
common virus that can be passed on through any type of sexual contact with a
man or a woman. There are more than 100 different types of HPV,
many of which are harmless. However, some types of HPV can cause abnormal
changes to the cells of the cervix, which can eventually lead to cervical
cancer.
Two strains of the HPV virus (HPV 16 and HPV
18) are known to be responsible for 70% of all cases of cervical
cancer. These types of HPV infection don't have any symptoms, so many
women won't realise they have the infection.
However, it's important to be aware that these
infections are relatively common and most women who have them don't
develop cervical cancer. Using condoms during sex offers some
protection against HPV, but it can't always prevent infection, because the
virus is also spread through skin-to-skin contact of the wider genital area. Since 2008, a HPV vaccine has been routinely offered
to girls aged 12 and 13.
Treating
cervical cancer
If cervical cancer is diagnosed at an early stage,
it's usually possible to treat it using surgery. In some cases, it's possible
to leave the womb in place, but it may need to be removed. The surgical
procedure used to remove the womb is called a hysterectomy.
Radiotherapy is an alternative to
surgery for some women with early stage cervical cancer. In some cases, it's
used alongside surgery. More advanced cases of cervical cancer are usually
treated using a combination of chemotherapy and radiotherapy. Some of the treatments used can have significant
and long-lasting side effects, including early menopause and infertility.
Complications
Many women with cervical cancer will have
complications. These can arise as a direct result of the cancer or as a side
effect of treatments such as radiotherapy, chemotherapy and surgery. Complications associated with cervical cancer can
range from the relatively minor, such as minor bleeding from the vagina
or having to urinate frequently, to life-threatening, such as severe
bleeding or kidney failure.
Outlook
The stage at which cervical cancer is diagnosed is
an important factor in determining a woman's outlook. The staging, given as a
number from one to four, indicates how far the cancer has spread. The chances of living for at least five years after
being diagnosed with cervical cancer are:
- stage
1 – 80-99%
- stage
2 – 60-90%
- stage
3 – 30-50%
- stage
4 – 20%
In the UK, just under 1,000 women die from cervical
cancer every year.
Who's
affected by cervical cancer?
Following the success of the NHS Cervical Screening
Programme and the early detection of cell changes, the number of cervical
cancer cases in the UK has reduced. Around 3,000 cases of cervical cancer are
diagnosed in the UK each year.
It is possible for women of all ages to develop
cervical cancer, but the condition mainly affects sexually active women aged
between 30 and 45. Cervical cancer is very rare in women under 25.
Source: NHS Choices