Understanding the Procedure and Detected Diseases From Colonoscopy Screening

Colonoscopy screening is one of the crucial diagnostic tests for the colon and rectum. This process involves a sterile, flexible tube with a camera at the end. It captures images of the inside to determine the internal condition.

However, hearing about a colonoscopy from a doctor for diagnosis often creates anxiety for people. A colonoscopy does not always mean screening for cancer. It also detects polyps and the cause of internal bleeding.

Understanding what a colonoscopy can reveal is vital for making informed health decisions without panic. Explore this article to learn about the procedure and diseases detected through colonoscopy.

What is the Procedure of Colonoscopy Screening?

Colonoscopy may require preparation at home the previous day and a clinical procedure. Find out the step-by-step process below:

Step 1: Pre-Procedure Preparation

Patients have to take clear liquid diet the day before colonoscopy. Experts suggest a strong laxative solution the evening before to clean the colon. Consequently, frequent, watery bowel movements are expected.

Step 2: Hospital Check-In

Patients need to bring someone with them during their colonoscopy screening at the clinic. Patients have to stay on an empty stomach.

Step 3: Positioning and Sedation

Patients are provided with mild sedation through an intravenous line. After that, patients have to lie on the table on their left side with their knees drawn up toward their chest.

Step 4: Insertion and Examination

The gastroenterologist gently inserts the flexible tube through your anus. After that, the expert will blow carbon dioxide through the tube. The camera on the tip sends high-definition images and videos.

Step 5: Collecting a Sample for Biopsy

If the expert finds any unnatural growth, polyps, or wounds, they pass small instruments through the tube. It collects a small tissue sample for biopsy and also removes growths.

Step 6: Withdrawal

After that, doctors slowly withdraw the colonoscope (the tube) gently. Patients may feel mild cramping or bloating from the leftover air, which is normal.

Uncertain health conditions often cause significant out-of-pocket expenditure even before diagnosis. That is why you may consider health insurance from reputed companies. 

Confused about choosing from a wide range of insurers? Contact Bajaj Health Insurance for a comprehensive health insurance plan to stay financially secure during adverse health conditions.

What are the Detected Diseases Through Colonoscopy Screening?

This test is effective for screening specific irregularities such as precancerous polyps, inflammatory bowel diseases (IBD), microscopic colitis and more. Let us find out why colonoscopy is important for detecting these diseases in detail below.

1. Colorectal Cancer

Doctors often recommend colonoscopy as the primary test for colon cancer screening. Professionals look for cancerous tissues or tumours inside the colon or rectum. If they find something suspicious, they collect a sample for biopsy.

Expected Symptoms:

1. Changes in bowel habits, blood in the stool, and ongoing belly discomfort
2. Frequent diarrhoea or constipation

2. Precancerous Polyps

A colonoscopy screening prevents cancer even before it develops. It can identify three types of polyps, such as adenomatous polyps (Adenomas), hyperplastic polyps, and sessile serrated polyps, which are pre-cancerous, non-cancerous, and carrying cancer risk, respectively. Experts remove the risk of that specific clump of cells turning into cancer.

Expected Symptoms:

1. Bright red blood on toilet paper.
2. Dark or black stools with blood marks.

3. Ulcerative Colitis

Inflammation often causes chronic digestive problems and often develops into Inflammatory Bowel Disease (IBD). Ulcerative colitis is one of the crucial IBDs that requires colonoscopy screening to detect. It causes sores or ulcers in the innermost lining of the large intestine and rectum. The wall of the colon might appear red, swollen, and have open sores.

Expected Symptoms:

1. Frequently loose, watery stools many times a day with visible blood, mucus, or pus.
2. Pain or tenderness in the belly

4. Crohn’s Disease

It is another significant IBD that can affect any part of the digestive tract. It is mainly found at the end of the small intestine and the beginning of the colon. Through a colonoscopy, the expert might find inflammatory “patches”.

Expected Symptoms:

1. Discomfort often felt in the lower right side or middle of the abdomen.
2. Loss of appetite causing massive weight loss.

5. Diverticulosis and Diverticulitis

Small pouches in the lining of the colon often develop after ageing, known as diverticulosis. However, if these pouches become infected and inflamed, it is called diverticulitis. Experts usually avoid a colonoscopy during the acute situation. A colonoscopy screening ensures the symptoms are not caused by a tumour.

Expected Symptoms:

1. Abdominal pain, fever, and changes in bowel habits.
2. Severe bloating and gas.

6. Microscopic Colitis

Unlike ulcerative colitis, microscopic colitis does not appear abnormal during a visual exam. It often requires doctors to collect tissue and examine it under a microscope. There are mainly two types of microscopic colitis: collagenous colitis, which has a thick layer of protein, and lymphocytic colitis, in which white blood cells develop in colon tissue.

Expected Symptoms:

1. Sudden, strong need to rush to the bathroom to have a bowel movement.
2. Liquid stools occurring roughly 5 to 10 times a day.

What are the Other Medical Causes for Colonoscopy Screening?

Rectal bleeding and some specific health conditions in women often require colonoscopy.

Rectal Bleeding

An individual must not ignore rectal bleeding. Though it is usually because of haemorrhoids, a medical expert may suggest colonoscopy screening in case of more serious causes. 

1. Haemorrhoids: Doctors can detect them visually, but a colonoscopy helps rule out other causes of bleeding in the colon
2. Anal Fissures: They are small tears in the lining of the anus causing bleeding. A colonoscopy works similarly to haemorrhoids here.
3. Angiodysplasia: These are fragile blood vessels present in the colon that may leak blood. It appears as bright red, fern-like lesions on the colonoscopy monitor.

Colonoscopy on Women

Several gynaecological conditions might require colonoscopy to ensure that there are no issues in the rectum or colon.

1. Overlapping Gynaecological Issues: The colon shares space with the uterus, ovaries, and bladder in the pelvic cavity. For instance, chronic bloating or cramping often gets misattributed to conditions like endometriosis, ovarian cysts, or uterine fibroids. To make sure it is not from colon or rectum, doctors often suggest a colonoscopy.
2. Post-Surgery Complications: Women, especially after a C-section, may face abdominal adhesions. This can lead to altered bowel function, chronic constipation, or pelvic pain. Doctors may suggest a colonoscopy for internal investigation.
3. Hormonal Impacts: Hormonal changes often impact gut motility. Women may face constipation or irritable bowel syndrome (IBS), and doctors may suggest a colonoscopy screening.

What are the Limitations of Colonoscopy Screening and Alternatives?

Find out the limitations and alternative approaches to colonoscopy below:

Limitations of Colonoscopy

1. Colonoscopy is limited by the skill and experience of medical experts performing the test.
2. It causes discomfort to the patients.
3. Small polyps, specifically on the right side of the colon, are often missed.
4. In case of poor bowel preparation, the screening may not provide accurate results.
5. It is a costly diagnostic tool, not affordable for all.

Alternatives to Colonoscopy

Cologuardtest is one of the crucial alternatives to colonoscopy that ensures patients can do at-home screening tests. They need to collect a single stool sample at home. It detects altered DNA markers from cells shed by polyps or tumours, and hidden blood. Patients may deliver the kit back to a laboratory using a prepaid shipping label.

Final Thought

A delayed medical screen often causes late diagnosis, leading to further complications. That is why, if a doctor suggests a colonoscopy screening, never ignore it. Do not panic thinking a colonoscopy is only suggested when a doctor doubts cancer. It is a routine diagnostic process for checking inside the rectum and colon.

However, these diagnoses can be expensive, and people may not afford them all of a sudden. As a health condition never worsens with prior information, people may prepare with effective health insurance plans that cover costly treatments and diagnoses.

Contact Bajaj General Insurance, that offers plans designed to cover the wide spectrum of medical needs.

FAQs

Is a colonoscopy painful?

No. In fact, patients are sedated before the test. That is why they do not feel pain during the test. However, as a foreign particle is inserted, patients may feel mild discomfort even after the test is over.

How long does the entire process take?

The colonoscopy itself takes 15 to 30 minutes. However, the clinical visit, waiting, preparation and more may take 1 to 2 hours.

Can I drive myself home after the test?

No. You cannot drive yourself home after the test because, due to mild sedation, you may not reflex or coordinate properly.

What happens if the doctor finds a polyp?

If your doctor finds polyps, always removed immediately during the procedure. It is very common and considered a preventative outcome.

How often do I need to undergo this screening?

How often you need to undergo a colonoscopy depends entirely on your personal risk category and the findings of your most recent test. If the recent test finds polyps or growths, it is necessary to check at least once a year. However, follow the advice of your physician regarding this.

*Standard T&C Apply. Insurance is the subject matter of solicitation. For more details on benefits, exclusions, limitations, terms, and conditions, please read the sales brochure/policy wording carefully before concluding a sale.