The silent signs of colon cancer: What you should never ignore

Written in association with: Dr Rishi Goel
Published: | Updated: 18/10/2024
Edited by: Karolyn Judge

Colon cancer, also known as colorectal cancer, is one of the most common types of cancer in the UK. It can develop without obvious symptoms, which is why it is often referred to as a ‘silent’ condition. In this article, a leading consultant gastroenterologist talks about how recognising early warning signs is crucial for prompt diagnosis and treatment, which can significantly improve outcomes.

Man thinking about colon cancer.

What are the early signs to watch for?

While some people may experience no symptoms, there are a few subtle changes that could indicate the presence of colon cancer:

  • Changes in bowel habits: One of the earliest signs of colon cancer is a change in bowel movements. This can include constipation, diarrhoea, or a change in stool consistency that persists for more than a few days.
  • Blood in the stool: Blood may not always be visible, but dark or black stools can indicate the presence of bleeding in the colon.
  • Unexplained weight loss: Losing weight without trying could be a sign of colon cancer, as the body may not be absorbing nutrients effectively.
  • Fatigue: Persistent tiredness can occur due to a loss of blood or the body’s inability to get enough nutrients.
  • Abdominal discomfort: Cramping, bloating, or constant pain in the lower abdomen could be a warning sign of colon cancer.

 

 

How important is early detection of colon cancer?

Early detection is key to treating colon cancer effectively. If caught early, the prognosis is often good, with high survival rates. Regular screening, such as colonoscopies, can detect precancerous polyps that can be removed before they become cancerous. This preventive measure is crucial, especially for individuals with risk factors such as a family history of the disease or those over the age of 50.

 

 

When should I seek medical advice for colon cancer?

It is essential not to ignore persistent symptoms. If you notice any changes in your bowel habits or if any of the silent signs listed above persist, you should seek medical advice immediately. Early diagnosis can prevent bowel cancer from progressing to more advanced stages, where treatment becomes more complex.

 

 

How can I reduce my risk of developing colon cancer?

Lifestyle choices can also play a role in lowering the risk of colon cancer. A diet rich in fruits, vegetables, and whole grains, as well as regular exercise and avoiding smoking and excessive alcohol consumption can contribute to better colon health. Additionally, routine screening as recommended by your healthcare provider is an essential part of reducing the risk of developing colon cancer.

 

 

 

Are you concerned that you might be experiencing early signs of colon cancer? Arrange a consultation with Dr Goel via his Top Doctors profile.

By Dr Rishi Goel
Gastroenterology

Dr Rishi Goel is a highly skilled consultant gastroenterologist in London who specialises in gastroscopy, colonoscopy and capsule endoscopy, and the management of conditions such as acid reflux, inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). He privately practises at the New Victoria Hospital and his NHS base is Kingston Hospital NHS Foundation Trust where he now leads the inflammatory bowel disease and video capsule endoscopy services.

Dr Goel graduated from Guy’s, King’s, and St Thomas’ Medical Schools, London, in 2004. His comprehensive medical training across London and the South East equipped him with extensive experience, particularly in gastroenterology and general medicine, which he pursued through specialist training from 2008 onwards.

He has made significant contributions to research into the genetics and microbiology of Crohn’s disease and IBD. His three-year tenure at Guy’s & St Thomas’ Hospitals was instrumental in this research, and his work has been recognised through the publication of over 30 peer-reviewed articles, numerous abstracts presented at international conferences, and authorship of a textbook chapter. Dr Goel has also contributed as a sub-investigator in an international clinical trial for a novel treatment for Crohn’s disease, and he continues to be actively involved in clinical research.

His recent academic achievements include an MD Res degree from King’s College London in 2024, with a thesis focusing on the microbiome and genetics in oral and gut Crohn's disease.

Dr Goel's sub-specialties include therapeutic endoscopy, wireless pH monitoring for acid reflux, orofacial granulomatosis, dyspepsia, indigestion, upper GI disorders, gastro-oesophageal reflux, colorectal polyps and polypectomy. His expertise extends to offering advanced services such as Video Capsule Endoscopy and Acid Reflux Testing (wireless pH monitoring) at New Victoria Hospital.

He is a member of various professional organisations, including the British Society of Gastroenterology and the European Crohn's and Colitis Organisation.

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