On World Cancer Day, the Public Health Agency (PHA) is encouraging people to be aware of any changes in their bodies and to contact their GP if they have any concerns.

"Everyone knows what feels 'normal' for them and it's important to be aware of any changes in your body, but there are some common changes and symptoms to look out for and act on," said Dr Louise Herron, Deputy Director of Public Health at the PHA. "Being aware of the general signs and symptoms of cancer can help in early detection and increase your chance of survival."

Dr Herron highlighted that cancer is a common condition, with an estimated one in two people developing some form of cancer during their lifetime.

Some common cancer symptoms include:

• Coughing up blood

• Blood in urine

• Blood mixed through bowel motion (stools)

• A change in bowel habit that lasts for three weeks or more

• Unexplained, significant weight loss

• A lump anywhere on your body

• Changes on your skin or to an existing mole (such as itching, bleeding or a change in shape or colour)

• A sore that doesn't heal

• Symptoms that refuse to clear up, for example a cough or hoarseness that lasts for more than three weeks.

"If you notice any of these symptoms and you feel something isn't right, do not hesitate to contact your GP," said Dr Herron. "In many cases, these symptoms will turn out to be a sign of something far less serious, but it is always best to get them checked out. If it is cancer, an early diagnosis means treatment is more likely to be successful."

The PHA also advises on steps people can take to reduce their risk of developing cancer, including:

• Stop smoking. Visit www.StopSmokingNI.info for tips on helping you to quit and information on support services available.

• Keep alcohol consumption within safer limits. Advice on this can be found at www.DrugsAndAlcoholNI.info.

• Exercise regularly. Visit www.ChooseToLiveBetter.com for more information on simple steps on getting active and healthier food choices that can help maintain a healthy weight.

• Avoid over-exposure to ultraviolet radiation. Use sunscreen, seek shade, wear sun glasses and a hat when in the sun and particularly when the UV index is 3 or more. Avoid using sunbeds. Check your skin regularly for any changes. Visit www.CareInTheSun.org for more information.

• Attend for screening when invited. For more information on Northern Ireland screening programmes visit www.CancerScreening.hscni.net