NORTH East researchers have called for more to be done to raise awareness of the symptoms of mouth cancer.
Experts from Durham University, working alongside Cambridge and Bangor universities, have carried out a study on the number of days between a patient first noticing symptoms to when they sought medical help.
The project, which also involved the National Cancer Intelligence Network, found people with cancers of the mouth and oesophagus, which carries food from the throat to the stomach, are waiting longer to visit their GP compared to patients with other forms of the disease.
The research found that oesophageal cancer patients are waiting around three weeks to see their doctor.
Meanwhile, patients with bladder and kidney cancers wait just two or three days.
Cancer Research UK said the findings highlight the need for awareness to encourage people to visit their GPs sooner if they notice symptoms.