Cancer is a deadly disease that’s caused by specific cells in the body reproducing uncontrollably, according to the NHS.
These cancerous cells can destroy the healthy tissue surrounding them – including vital organs.
More than a third of all people will develop cancer at some point in their lifetime.
The most common symptoms of cancer include weight loss and unexplained pain.
Weight loss could be a warning sign of a number of different types of cancer, including pancreatic, stomach and oesophageal cancer.
Any unexplained weight loss of more than 10 pounds could be a sign of the disease, warned the American Cancer Society.
Pain is one way the body tells us that something’s isn’t right, including cancer.
Charity Macmillan Cancer Support added: “Knowing how your body normally looks and feels can help you be aware of any changes that could be caused by cancer.
“If you have any symptoms that are ongoing, unexplained or unusual for you it’s important to see your family doctor.
“There are certain symptoms you should always have checked.
“Don’t be scared about getting symptoms checked by your GP. You are not wasting their time by getting your symptoms checked.
“The earlier cancer is found, the more likely it is to be cured.”
Other common cancer symptoms include unexplained bleeding and new lumps or swellings.
Finding blood in your stool could be a sign of bowel cancer, whereas unusual vaginal bleeding could be caused by cervical cancer.
One of the main warning signs of breast cancer is finding a lump on the breast, added the NHS.
There are more than 200 different types of cancer, and each has different symptoms and treatments.
You can lower your chances of cancer by making some lifestyle changes, it added.
Aside from smoking, obesity is the most common preventable cause of cancer.
The best way to prevent obesity is to eat a healthy, balanced diet, and by doing regular exercise.
Everyone should aim for at least 150 minutes of moderate-intensity activity every week.