Cancer warning - the three most common signs of cancer you should know about

Change in bowel habits

You should speak to a GP if you’ve had a change in bowel habits, said the NHS.

The symptom could include finding blood in your stool, having diarrhoea, or having constipation for no apparent reason.

An unexplained pain in the stomach or persistent bloating should also be seen by a GP.

You only need to speak to a doctor if the change in bowel habit has lasted more than a few weeks, it added.

Bleeding

Any signs of unexplained bleeding should be seen by a doctor, said the NHS.

That includes finding blood in your urine, when you cough, or when you vomit.

Vomiting blood could be a warning sign of oesophageal cancer or stomach cancer.

Prostate cancer symptoms include finding blood in your urine.

Moles

Any unusual changes to a mole could be a sign of skin cancer.

“See your GP if you have a mole that has an irregular or asymmetrical shape, or has an irregular border with jagged edges,” said the NHS.

If the mole has more than one colour, or is bigger than 7mm, it should also be seen by a doctor.

Similarly, speak to a GP if the mole is itchy, crusting or bleeding.