Colonoscopy refers to endoscopic techniques for the modern diagnosis of various colon pathologies.

Thanks to this method, doctors can determine the presence of inflammatory processes, benign and malignant neoplasms, as well as ulcerative lesions of the colon mucosa already at the initial stage of development.

With the help of colonoscopy, not only the intestines can be examined. This technique has other advantages. Modern equipment allows doctors to take a biopsy at the same time as the examination.

To achieve optimal visualization of the mucosa, it is necessary to properly prepare the patient for the procedure. To cleanse the intestines, relax the tone of the intestine, prepare morally.

What are the benefits of colonoscopy?

When conducting a similar diagnostic procedure, a specialist evaluates the condition of the intestinal mucosa and its motility. That allows you to notice in time and subsequently eliminate inflammatory disorders.

Using a colonoscope, you can assess the state of the intestinal lumen and its size. If it is narrowed by cicatricial changes, then the doctor will be able to expand it.

During the procedure, the doctor can see on the screen even the smallest changes and neoplasms that can appear in the form of cracks, polyps, hemorrhoidal nodes, ulcerative lesions, diverticulums, tumors or foreign bodies.

The main advantage is that if the doctor sees at least one of the above phenomena on the screen, then he can immediately take part of the tissue for laboratory testing.

If the patient was diagnosed with a small tumor of a benign nature, then you can immediately remove it. Thus, you can save the patient from surgical intervention.

Colonoscopy allows you to find the cause of bleeding that occurs in the intestine and remove their cause in a timely manner. Removal is carried out by exposure to high temperature.

The modern apparatus makes it possible to obtain an image of the intestinal mucosa.

Thanks to all of these features, colonoscopy is considered the most informative bowel diagnostic technique.

You can go through the procedure not only in private clinics, but also in state ones. If the patient has certain complaints, then it is prescribed without fail.

In what cases is a colonoscopy prescribed?

Patients are prescribed this diagnostic technique if:

  • secretions with blood feces;
  • suspicion of any pathological condition affecting the colon;
  • relatives with neoplasms of a benign and malignant nature on the walls of the colon;
  • previously transferred surgical interventions on the colon;

It is also prescribed to clarify the results of other diagnostic methods.

Men and women over fifty years of age are prescribed to regularly undergo a procedure to timely detect colorectal cancer.


Like any diagnostic method, colonoscopy has a number of contraindications, and serious complications can be provoked during its implementation.

So, the main contraindications are:

  • acute infectious process, which causes an increase in body temperature and intoxication;
  • serious diseases of the cardiovascular system (heart failure, myocardial infarction);
  • the presence of artificial heart valves;
  • a sharp and persistent decrease in blood pressure;
  • lung dysfunction;
  • inflammation of the serous cover of the abdominal cavity of a local or diffuse nature;
  • inflammatory processes in the intestines;
  • ulcerative colitis;
  • umbilical and inguinal hernias;
  • disturbed blood coagulation process.

Also, doctors do not recommend women to carry out the procedure during pregnancy.

If the patient has such contraindications, then he is prescribed an alternative diagnostic technique.

Examination preparation

Proper preparation will allow you to carry out the procedure without difficulties and complications.

Preparation consists of two main stages - a non-slag diet and proper bowel cleansing.


A diet is prescribed to completely and thoroughly clean the digestive tract. Thus, the patient completely frees the intestinal walls from slag deposits, and feces are also completely removed. If you do not get rid of them, then the procedure will be much more difficult, the diagnostic probe will be difficult to move through the colon.

Preparation begins in a few days. A non-slag diet does not mean a complete rejection of food; only certain foods need to be excluded from the diet. Doctors do not recommend three days to eat fresh fruits and vegetables, herbs, meat, fish, pasta, cereals and all products that can trigger increased gas formation. It is difficult for the stomach to digest similar products, and gas formation begins in the intestine.

It is better to give preference to products such as lean meat and fish, wheat bread, diet broths, biscuit biscuits and dairy products.

Before the procedure itself is allowed to drink only water.


The second basic condition is bowel cleansing. In this case, you can use the well-known enema.

Enema must be delivered in the evening and in the morning before a diagnostic event. The volume of fluid (pure water) in the enema should be at least half a liter.

On the day of the examination, you need to put an enema in the morning twice with an interval of one hour.

This is a fairly simple and effective way to cleanse the intestines.

Perhaps cleansing the intestines with the use of special tools. Used Fortrans, Pikolaks, Dufalak and more.

Colonoscopy and anesthesia

This study belongs to the list of severe endoscopic examinations of the colon. Often it can be accompanied by pain and discomfort. As a rule, pain occurs in patients with the presence of any neoplasms on the walls of the colon.

Modern medicine has found a way out of this situation, and today it is possible to undergo examination under anesthesia. Specialists call this medical sleep.

For this, the patient is given an intravenous injection, as a result, he quickly becomes immersed in sleep, which lasts exactly as long as the examination itself.

In order for everything to go easily and quickly, you need to listen to all medical recommendations and follow all the rules of preparation.

The author of the article:
Izvozchikova Nina Vladislavovna

Specialty: infectious disease specialist, gastroenterologist, pulmonologist.

Total length of service: 35 years.

Education: 1975-1982, 1MI, San Gig, highest qualification, infectious diseases doctor.

Science degree: doctor of the highest category, candidate of medical sciences.


  1. Infectious diseases.
  2. Parasitic diseases.
  3. Emergency conditions.
  4. HIV
Other articles by the author

Watch the video: Prepare for a Colonoscopy (January 2020).