Smear test
Cervical screening isoffered because it can detect abnormal cell changes in the cervix (the lower part of the womb) that could potentially develop into Cervical cancer .
Abnormal cells that are picked up during cervical screening often return to normal on their own, so waiting may be recommended.
However, if more significant abnormalities are detected at an early stage, there is the option of having treatment to remove them before they have a chance to become cancerous.
Since the screening programme was introduced in the 1980s, the number of cervical cancer cases has decreased by about 7% each year and it's estimated that up to 5,000 cases of cervical cancer are prevented each year in the UK because of cervical screening.
Abnormal changes in the cells of the cervix can be caused by certain high-risk types of human papilloma virus (HPV) .
HPV is the name of a family of common viruses that affect the skin and the mucus membranes (moist tissue that lines parts of the body), such as those in your cervix, anus, mouth and throat.
HPV is very common and is passed on through skin-to-skin contact. It'sestimated that 8 out of 10 people in the UK are infected with HPV at some point during their lifetime. For most people, the virus goes away without treatment and doesn't cause any harm.
However, infection with some types of HPV can cause abnormal cell growth, which can lead to cervical cancer. Other forms of HPV cause genital warts .
The high-risk types of HPV that can cause abnormalities in the cells of your cervix are transmitted through sexual contact. This includes penetrative sex as well as other types of sexual contact, such as skin-to-skin contact of the genital area, or using sex toys. Because most types of HPV, including high-risk types, don't cause any symptoms, you or your partner could have the virus for months or years without knowing it.
It can be very difficult to prevent HPV, which is one of the reasons cervical screening is so important.
Usinga condom during sex can reduce your risk of developing an HPV infection, but as condomsdon't cover the entire genital area and are often put on after sexual contact has begun, they're not guaranteed to preventthe spread of HPV.
A vaccination offering some protection against HPV is now offered to all girls aged 12-13 as part of the NHS Childhood Vaccination Programme.
Studies have already shown that the vaccine protects against HPV infection for around ten years, although experts expect protection to be for much longer.
It's very rare for cancer to be diagnosed from the results of a cervical screening test. Less than 1 in 1,000 test results show invasive cancer.
Although cervical screening can help to prevent cervical cancer, there aresome potential disadvantages associated with it. These include:
However, cervical screening isoffered to women aged 25-64 in England because the potential benefits of screening are believed to outweigh these risks.
Deciding whether or not to have a screening test is your choice. To help you decide,you can also read the NHS Cervical Screening leaflet (PDF, 453kb) .
If you don't want to be invited for screening in the future, contact your GP and ask to be removed from their list of women eligible for cervical screening. If you change your mind at a later date, you can simply ask your GP to put you back on the list.
A cervical screening test (previously known as a smear test) is a method of detecting abnormal cells on the cervix.
Cervical screening is recommended because it can detect abnormal cell changes in the cervix that could potentially develop into cervical cancer.
Women who are aged 25-64 and are registered with a GP are automatically invited for cervical screening.
The results of your screening test will be sent to you in the post, with a copy sent to your GP.