The Colonoscopy It is a test that allows for direct visualisation of the inside of the colon and of the recto. This makes it a fundamental tool for studying digestive symptoms that may originate in the large intestine, especially when discomfort is persistent, new changes appear, or there are warning signs.
Its main value is that it is not based on an indirect interpretation, but on direct observation of the intestinal mucosa. Thanks to this, it allows the detection of inflammation, polyps, lesions, bleeding, vascular alterations or changes compatible with diseases such as Inflammatory bowel disease or Colorectal cancer.
It is recommended in cases such as:
- Blood in stool help to locate the source of the bleeding and differentiate if it originates from the anal area, rectum, or colon.
- Changes in bowel rhythm allows the study of persistent diarrhoea, prolonged constipation, or alternating between the two.
- Iron deficiency anaemia It can help rule out digestive losses not visible to the naked eye.
- Abdominal pain or persistent symptoms: It is used when organic pathology of the colon needs to be ruled out.
Practical example: blood in stools
Imagine a person starts to see blood when wiping o small blood spots in the stool. Is it normal to first think of something common, like some haemorrhoids or one Anal fissure, especially if bleeding appears after a bowel movement.
However, it is not always possible to know the origin from the symptoms alone. The blood may come from the anal area, but also from the recto or del colon. In these cases, the Colonoscopy allows you to directly view the inside of the intestine, pinpoint the source of bleeding, and rule out other causes, such as polyps, inflammation or injuries requiring follow-up.
Therefore, in the face of recurrent or unexplained bleeding, a colonoscopy helps move from uncertainty to a more precise diagnosis.
Colonoscopy: Prevention and treatment in the same procedure
The Colonoscopy it not only serves to diagnose. One of its great advantages is that it allows action during the test itself. If it is detected polyp, in many cases it can be removed at that very moment. They can also be taken biopsies to analyse the tissue and confirm or rule out certain diseases.
This is especially important in the Colorectal cancer prevention. Many colon tumours develop from polyps that grow slowly over time. Detecting and removing them before they evolve makes colonoscopy an incredibly valuable preventive tool.
It may also be necessary in patients without symptoms, especially when there are Family history, risk age, previous polyps, or digestive diseases requiring follow-up. Therefore, it should not be understood solely as a test to study discomfort, but also as a way to anticipate significant digestive problems. Ultimately, the Colonoscopy combines three key functions: Accurate diagnosis, prevention and, in many cases, same-day treatment.
A common query is to think that the Colonoscopy is only performed when there is a serious suspicion. In reality, it is also a key test for prevent, discard causes and make medical decisions with greater confidence.