| UPDATED: 08:13, Thu, Mar 11, 2021 Link copied Bowel cancer symptoms explained by Doctor Richard Roope Sign up to receive our rundown of the day's top stories direct to your inbox SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. The small camera, know as colon capsule endoscopy, is a pill taken by patient which can take photographs inside the human body. It can help doctors diagnose a tumour within just five hours without the invasive nature of traditional colonoscopies.