An endoscopy, or gastroscopy, helps detect abnormalities in the upper gastrointestinal tract, including polyps, Helicobacter pylori infection, and oesophageal and stomach cancers.

Colorectal cancer is one of the most common yet preventable cancers in Singapore. A colonoscopy is advised if you are 50 or above, or if you experience symptoms such as unexplained weight loss, abdominal pain, changes in bowel habits, or blood in your stools.