Colonoscopy

Colonoscopy — How the Examination Is Performed and How to Prepare Properly

Colonoscopy — is a modern method of endoscopic examination of the large intestine that allows the doctor to assess the condition of the mucous membrane in detail, detect inflammatory processes, polyps, tumors, and other pathologies at early stages.

Many patients postpone colonoscopy because of fear or lack of information about the procedure. In fact, modern colonoscopy is an important and highly informative diagnostic method that helps detect serious intestinal diseases in time.

In this article, we will explain what colonoscopy is, when it is prescribed, how the procedure is performed, and how to prepare for the examination properly.

What Is a Colonoscopy?

Colonoscopy — is an endoscopic examination of the large intestine using a special device — a colonoscope.

A colonoscope is a thin flexible tube with a camera and light source that allows the doctor to examine the intestinal mucosa in real time.

During the procedure, the doctor can not only perform diagnostics but also carry out certain therapeutic manipulations:

• removal of polyps;
• collection of tissue for biopsy;
• stopping bleeding;
• assessment of the mucosa after treatment.

What Does a Colonoscopy Show?

Colonoscopy makes it possible to detect a wide range of intestinal diseases.

Intestinal polyps

Polyps — are one of the most common indications for colonoscopy. Some types of polyps may transform into malignant tumors over time.

Inflammatory bowel diseases

• ulcerative colitis;
• Crohn’s disease;
• chronic inflammatory processes.

Tumors

Colonoscopy helps detect benign and malignant tumors of the large intestine at early stages.

Sources of bleeding

The procedure allows the doctor to find the cause of blood in the stool or chronic blood loss.

When Is a Colonoscopy Prescribed?

A doctor may recommend colonoscopy for the following symptoms:

• blood in the stool;
• abdominal pain;
• long-term constipation or diarrhea;
• bloating;
• sudden weight loss;
• anemia of unknown origin;
• suspected polyps or tumors;
• chronic intestinal diseases.

Colonoscopy is also used as preventive screening after the age of 45–50, even if there are no symptoms.

Is Colonoscopy Painful?

One of the most common questions patients ask is whether colonoscopy is painful.

Modern colonoscopy can be performed:

• without sedation;
• under medical sleep;
• with pain relief.

In many cases, patients choose to undergo the procedure while asleep to avoid discomfort and anxiety.

The method of examination is selected individually after consultation with a doctor.

How Is a Colonoscopy Performed?

During the procedure, the patient lies on their side while the doctor carefully inserts the colonoscope through the rectum to examine the large intestine.

During the examination, the doctor evaluates:

• the condition of the mucosa;
• the presence of polyps;
• inflammatory changes;
• tumors;
• other pathologies.

If necessary, the doctor may immediately take a biopsy or remove small polyps.

The duration of a colonoscopy is usually 20 to 40 minutes.

Preparation for Colonoscopy

Proper preparation for colonoscopy — is one of the most important conditions for an accurate result.

If the intestine is not sufficiently cleansed, the doctor may not see certain changes in the mucosa.

Diet Before Colonoscopy

A few days before the procedure, a low-residue diet is usually recommended.

It is necessary to limit:

• vegetables and fruits high in fiber;
• grains;
• seeds;
• nuts;
• legumes.

Bowel Cleansing

Before colonoscopy, special medications are prescribed to cleanse the bowel.

The preparation regimen is determined by the doctor individually, depending on the time of the procedure and the patient’s specific needs.

Can You Drink Water Before a Colonoscopy?

In most cases, clear liquids are allowed until a certain time before the procedure. Exact recommendations should be clarified with the doctor.

What Should Not Be Done Before Colonoscopy?

• violating the diet;
• ignoring bowel cleansing;
• changing the preparation regimen on your own;
• hiding medication use from the doctor.

Recovery After Colonoscopy

After a standard procedure without sedation, the patient can usually return to their normal routine quickly.

After medical sleep, a short rest period and accompaniment may be required.

The doctor provides recommendations on diet and further actions after the examination.

Why It Is Important Not to Delay Colonoscopy

Many intestinal diseases may not cause noticeable symptoms for a long time.

Timely colonoscopy makes it possible to:

• detect polyps before they transform;
• diagnose bowel cancer at early stages;
• monitor chronic diseases;
• avoid serious complications.

Conclusion

Colonoscopy — is an important and informative intestinal examination that helps detect many diseases at early stages.

Proper preparation for the procedure significantly increases diagnostic accuracy and helps the doctor obtain the most informative result.

Timely intestinal examination — is an important part of prevention and health monitoring of the digestive system.