Screening is a way of finding out if people have a higher chance of having a health problem, so that early treatment can be offered or information given to help them make informed decisions.
Screening is a way of identifying apparently healthy people who may have an increased risk of a particular condition. The NHS offers a range of screening tests to different sections of the population.
The aim is to offer screening to the people who are most likely to benefit from it. For example, some screening tests are only offered to newborn babies, while others such as breast screening and abdominal aortic aneurysm screening are only offered to older people.
If you get a normal result (a screen negative result) after a screening test, this means you are at low risk of having the condition you were screened for. This does not mean you will never develop the condition in the future, just that you are low risk at the moment.
If you have a higher-risk result (a screen positive result), it means you may have the condition that you've been tested for. At this point, you will be offered further tests (called diagnostic tests) to confirm if you have the condition. You can then be offered treatment, advice and support.
Finding out about a problem early can mean that treatment is more effective. However, screening tests are not perfect and they can lead to difficult decisions about having further tests or treatment.
Read on to find out about the benefits, risks and limitations of screening.
Cervical screening (a smear test) checks the health of your cervix. The cervix is the opening to your womb from your vagina. It's not a test for cancer, it's a test to help prevent cancer. All women and people with a cervix aged 25 to 64 should be invited by letter.
If you're 75 or over, you can ask for a kit every 2 years by phoning the free bowel cancer screening helpline on 0800 707 60 60. If you're worried about a family history of bowel cancer or have any symptoms, speak to a GP for advice
AAA screening is offered to men during the screening year (1 April to 31 March) that they turn 65 to detect abdominal aortic aneurysms (a dangerous swelling in the aorta). Men over 65 can self-refer.
Before having any screening test, it's worth finding out about the test itself and what would happen next if you found out you have a higher risk of a particular condition.
Deciding whether or not to have a screening test is a personal choice and one which only you can make. When you are invited for screening, you will receive an information leaflet about the screening test.
You can discuss any aspect of the screening test with your health professional and decide whether or not it's right for you.
Different types of screening have different benefits and risks. Some of these are listed below.