Colonoscopy in Pune: How to Prepare, What Happens on the Day and When You Need One

Colonoscopy is one of the most powerful investigations available in gastroenterology — simultaneously the most effective cancer screening tool, the most accurate diagnostic test for bowel conditions, and the most underused investigation in Indian healthcare. Fear, embarrassment, and the intimidating prospect of bowel preparation keep many patients from having a colonoscopy that could identify a pre-cancerous polyp, confirm a diagnosis of inflammatory bowel disease, or explain years of unexplained bowel symptoms. This guide is designed to demystify the procedure completely — what preparation involves, what the procedure feels like, what is found, and what it costs in Pune in 2025.

When Is Colonoscopy Indicated?

• Rectal bleeding — to identify the source and exclude colorectal cancer
• Change in bowel habits lasting more than 3 weeks — new constipation, diarrhoea, or alternating pattern
• Iron deficiency anaemia without an obvious cause in adults over 45
• Colorectal cancer screening — routinely from age 45 for average-risk individuals in India
• Family history of colorectal cancer or adenomatous polyps — earlier screening from age 40
• Surveillance of previously removed polyps
• Diagnosis and monitoring of inflammatory bowel disease (UC or Crohn's)
• Unexplained chronic abdominal pain with lower GI features
• Positive faecal occult blood test
• Surveillance in longstanding ulcerative colitis

Bowel Preparation: The Most Important Part

The colon must be completely empty and clean for colonoscopy to be effective. A poorly prepared colon — with stool residue coating the mucosal wall — means the colonoscopist cannot see the lining clearly, lesions are missed, the procedure takes longer, and a repeat colonoscopy is often needed. Preparation compliance is directly linked to colonoscopy quality.

At Solo Clinic GI, the standard bowel preparation protocol is:

Diet Modification (2 Days Before)

Switch to a low-residue diet: white rice, plain idli, curd, clear soup, fruit juice without pulp. Avoid: whole grains, dals with skins, vegetables with seeds, raw fruits, red meat, nuts. This reduces the fibre load in the colon.

Clear Liquid Day (Day Before)

Only clear liquids — water, coconut water, fruit juice without pulp (apple, white grape), clear vegetable broth, black tea or coffee without milk. Nothing red or purple (colours can be confused with blood in the colon). Continue until midnight.

Laxative Preparation (Evening Before and Morning Of)

The standard laxative preparation in India is polyethylene glycol (PEG — available as Peglec, Klean-Prep, or similar). You will be given 2–3 litres of PEG solution to drink in two split doses: approximately 1.5 litres the evening before and the remainder 4–6 hours before the scheduled colonoscopy. Each dose is drunk over 2–3 hours — approximately one glass every 10–15 minutes.

The preparation produces multiple loose and then watery bowel movements, clearing the colon progressively. By the time preparation is complete, the stools should be clear yellow water with no particulate matter. Stay near a toilet and hydrate with clear fluids between doses. The preparation is the part patients most dread — and most are relieved to find that while it is inconvenient, it is manageable.

The single most important rule: Follow the preparation instructions exactly. A shortcut in preparation means a less effective colonoscopy. The endoscopist cannot adequately examine a colon that has not been adequately prepared.

On the Day: The Procedure Step by Step

Colonoscopy is performed with intravenous sedation at Solo Clinic GI — you are deeply relaxed, comfortable, and will have minimal or no memory of the procedure. You lie on your left side on the procedure couch.

The colonoscope — a longer, thinner, flexible tube than the gastroscope — is introduced gently through the rectum. Air (or CO2, which is absorbed more quickly and causes less post-procedure bloating) is insufflated to open the colon lumen for viewing. The colonoscope is advanced progressively through the rectum, sigmoid colon, descending colon, transverse colon, ascending colon, and into the caecum — and ideally into the terminal ileum (the last part of the small intestine). The full examination takes 20–40 minutes in a well-prepared colon.

The mucosal examination is performed during both insertion and — most carefully — withdrawal. Most polyp detection occurs during the careful, slow withdrawal phase. Biopsies are taken of any suspicious area. Polyps are removed if found (polypectomy — using a wire snare or hot biopsy forceps to excise them through the colonoscope).

After Colonoscopy: Recovery and What to Expect

Recovery from sedation takes 30–60 minutes. You will feel bloated and may pass wind — this is the air (or CO2) that was insufflated into the colon. A mild abdominal cramp is normal and resolves quickly. Dr. Rajesh will discuss his findings with you before you leave.

You can eat and drink normally once you are fully alert. Start with light foods — khichdi, curd, banana. You cannot drive for the rest of the day after sedation. If a polypectomy was performed, a low-fibre diet for 24–48 hours and avoidance of NSAIDs for a week is advised to reduce bleeding risk from the polypectomy site.

Colonoscopy Cost in Pune (2025)

Diagnostic colonoscopy at a specialist clinic in Pune ranges from approximately ₹6,000–₹15,000, depending on the facility, sedation, and whether therapeutic procedures (polypectomy, biopsy) are performed. At Solo Clinic GI, the cost includes sedation, the colonoscopy procedure, and histopathology of any tissue taken. Most comprehensive health insurance policies cover colonoscopy when prescribed by a doctor.

Frequently Asked Questions

How long does colonoscopy take from start to finish?

The procedure itself takes 20–40 minutes for a diagnostic colonoscopy of a well-prepared colon. Allow 2–3 hours total for the appointment — including preparation, IV cannula placement, the procedure, and recovery from sedation. If polypectomy is performed (removing polyps during the same sitting), the procedure may take longer depending on the number and size of polyps.

Is the bowel preparation (laxative) the worst part?

Most patients say yes — and then say it was less bad than they expected. The PEG solution has a slightly salty taste and the volume (2–3 litres total) is the main challenge. Practical tips: chill the solution in the refrigerator before drinking, use a straw, suck on a lemon between glasses to counter the salty taste, and drink each glass steadily rather than slowly sipping. The loose bowel movements begin 30–60 minutes after starting the preparation and continue for 3–4 hours. Plan to be at home with easy bathroom access throughout.

What happens if a polyp is found during colonoscopy?

Small polyps (under 5–10mm) are typically removed at the same sitting using a technique called polypectomy — a wire snare or electrocautery forceps excises the polyp through the colonoscope. The removed polyp is sent for histopathology to determine whether it is an adenomatous (pre-cancerous) polyp or a hyperplastic (non-cancerous) one. Larger polyps may require a more complex endoscopic mucosal resection (EMR) technique — either at the same sitting or at a planned second procedure. Read our dedicated guide on polyps found at colonoscopy.

How do I know if my colon is clean enough before colonoscopy?

Your stools should be clear yellow or colourless water — no solid or semi-solid matter, no brown or orange tinge. If you are still passing dark brown or solid stools at the time of your preparation's second dose, contact the clinic — additional preparation steps can be advised. A poorly prepared colon on the day of the procedure may require the procedure to be rescheduled, which is why preparation compliance matters so much.

Need a Colonoscopy in Pune — Diagnostic or Screening?

Dr. Rajesh Tandulwadkar performs AI-assisted colonoscopy at Solo Clinic GI with clear preparation instructions, IV sedation, and same-day polypectomy where indicated. Appointments available within days for symptomatic patients.

Book a Colonoscopy →    Call +91 98500 89371

Medical Disclaimer: Colonoscopy preparation instructions and procedure details should be confirmed with your treating physician. This article is for informational purposes only. Consult Dr. Rajesh Tandulwadkar for an evaluation specific to your clinical indication.