Gastroenterologist
Dr. Mudit Kotwal
MBBS, MD, DM (Gastroenterology)
Endoscopy, colonoscopy, liver disease, IBD and pancreas problems. OPD: Monday to Saturday, 10 am – 5 pm.
Gastroenterology & Hepatology
Stomach, bowel and liver care in Lucknow
Acidity that will not settle, abdominal pain, loose motions, bleeding, jaundice or a fatty liver report? Our gastroenterologists at Charak Hospital, Hardoi Road, Dubagga, diagnose digestive and liver conditions with endoscopy and scans, and treat most of them with medicines or endoscopic procedures — without surgery.
NABH-accredited hospital
300-bed multispeciality
DM & DNB gastroenterologists
Endoscopy, colonoscopy & ERCP
Talk to our gastro & liver team
Share your details — our coordinator will call you back to schedule a visit.
24×7 hospital & emergency0522-666-4444
Our approach
Digestive and liver care, mostly without surgery
Gastroenterologists diagnose and treat problems of the food pipe, stomach, intestines, liver, gallbladder and pancreas. Most conditions are treated with medicines, diet changes and endoscopic procedures. When surgery is needed, we work with our surgical gastroenterology team.
- Your symptoms, reports and options explained clearly
- Endoscopy and colonoscopy, with sedation when needed
- ERCP for bile duct stones and blockages
- Long-term care for liver disease, IBD and hepatitis
- Joint care with GI surgery, oncology and radiology
Acidity & stomach
GERD, gastritis, ulcers and H. pylori infection.
Bowel
IBS, IBD, chronic diarrhoea, constipation and bleeding.
Liver
Fatty liver, hepatitis B and C, cirrhosis and jaundice.
Endoscopy
Diagnostic and therapeutic endoscopy, colonoscopy and ERCP.
300Bed multispeciality hospital
NABHAccredited for quality and patient safety
24×7Emergency & critical care
27+Specialities under one roof
Know the signs
When to see a gastroenterologist
See a doctor if any of these last more than 2–3 weeks, or keep coming back.
Acidity or heartburn
Burning in the chest or upper abdomen, sour belching, or needing antacids often.
Difficulty swallowing
Food sticking, pain on swallowing or vomiting.
Abdominal pain or bloating
Pain, bloating or fullness that keeps coming back.
Change in bowel habit
Loose motions, constipation or alternating patterns.
Blood in stools or vomit
Black stools, fresh blood, or vomiting blood.
Jaundice
Yellow eyes or skin, dark urine or pale stools.
Abnormal liver report
Fatty liver on ultrasound, or raised liver enzymes on a blood test.
Weight loss
Unexplained weight loss or anaemia.
Go to emergency straight away if you vomit blood, pass black or bloody stools, have severe abdominal pain, or have jaundice with confusion or drowsiness. Call 0522-666-4444.
Conditions A–Z
Find information about a digestive or liver condition
Tap a condition to read the common signs, how it is diagnosed and how it is treated.
GERD (acid reflux)
Stomach acid flowing back into the food pipe
Common signs
Heartburn, sour belching, chest discomfort and cough at night.
How it is diagnosed
Symptoms; endoscopy for persistent or warning symptoms.
How it is treated
Diet and lifestyle changes, acid-reducing medicines, and treating complications.
Read about GERDGastritis and peptic ulcer
Inflammation or sores in the stomach lining
Common signs
Upper abdominal pain or burning, nausea, black stools if bleeding.
How it is diagnosed
Endoscopy and H. pylori tests.
How it is treated
Acid-reducing medicines, treating H. pylori, and avoiding painkillers that harm the stomach.
Read about peptic ulcersH. pylori infection
A common stomach infection
Common signs
Often none; can cause gastritis and ulcers.
How it is diagnosed
Breath test, stool test or biopsy during endoscopy.
How it is treated
A course of antibiotics with acid-reducing medicine, then a test to confirm clearance.
Read about gastritisIrritable bowel syndrome (IBS)
A common, long-term bowel condition
Common signs
Abdominal pain with loose stools, constipation or both, bloating.
How it is diagnosed
History, blood and stool tests; colonoscopy if there are warning signs.
How it is treated
Diet changes, stress management and medicines for symptoms.
Read about IBSUlcerative colitis and Crohn’s disease
Inflammatory bowel disease (IBD)
Common signs
Diarrhoea with blood or mucus, abdominal pain, weight loss.
How it is diagnosed
Colonoscopy, biopsy, stool and blood tests, and scans.
How it is treated
Long-term medicines to control inflammation; surgery for some patients.
Read about ulcerative colitisBleeding from the gut
Blood in stools or vomit
Common signs
Vomiting blood, black stools or fresh blood in stools.
How it is diagnosed
Urgent endoscopy or colonoscopy.
How it is treated
Endoscopic treatment to stop bleeding, plus medicines and blood transfusion if needed.
See warning signsChronic constipation and diarrhoea
Long-lasting bowel problems
Common signs
Infrequent or hard stools, or loose motions for weeks.
How it is diagnosed
History, blood and stool tests, and colonoscopy if needed.
How it is treated
Diet, fluids and medicines for the cause.
Fatty liver (NAFLD/MASLD)
Fat build-up in the liver
Common signs
Usually none; found on ultrasound or blood tests.
How it is diagnosed
Ultrasound, liver tests and FibroScan-type tests to check scarring.
How it is treated
Weight loss, exercise, diet changes, and controlling diabetes and cholesterol.
Read about liver diseaseHepatitis B and C
Viral infections of the liver
Common signs
Often none for years; tiredness or jaundice in some.
How it is diagnosed
Blood tests for the virus and liver function.
How it is treated
Antiviral medicines; hepatitis C can usually be cured with tablets.
Cirrhosis
Advanced scarring of the liver
Common signs
Swelling of the abdomen, jaundice, vomiting blood, confusion.
How it is diagnosed
Blood tests, ultrasound, endoscopy for varices.
How it is treated
Treating the cause, medicines, banding of varices, and assessment for transplant when needed.
Jaundice
Yellowing of the eyes and skin
Common signs
Yellow eyes, dark urine, pale stools, itching.
How it is diagnosed
Liver function tests, ultrasound and further tests for the cause.
How it is treated
Depends on the cause — hepatitis, stones or blockage — with medicines or ERCP.
See testsAlcohol-related liver disease
Liver damage from alcohol
Common signs
Often none early; jaundice, swelling or bleeding later.
How it is diagnosed
Blood tests and ultrasound.
How it is treated
Stopping alcohol completely, nutrition support and treatment of complications.
De-addiction supportBile duct stones and blockage
Stones or narrowing of the bile duct
Common signs
Jaundice, pain, fever and shivering.
How it is diagnosed
Ultrasound, MRCP and blood tests.
How it is treated
ERCP to remove stones or place a stent.
GI surgeryPancreatitis
Inflammation of the pancreas
Common signs
Severe upper abdominal pain spreading to the back, vomiting.
How it is diagnosed
Blood tests and CT scan.
How it is treated
Hospital care, fluids and pain relief; treating the cause such as gallstones or alcohol.
No match found. Please call us on 0522-666-4444 — we will guide you.
Diagnosis
How we find the cause — before we treat
Many digestive problems can be diagnosed with blood tests, an ultrasound and a camera test. Biopsies are taken during endoscopy when needed.
Consultation
Your symptoms, diet, medicines, alcohol use and family history.
Blood & stool tests
Blood count, liver tests, hepatitis tests and stool tests.
Ultrasound & scans
Ultrasound of the abdomen; CT or MRCP when needed.
Endoscopy
A camera test of the food pipe, stomach and first part of the intestine.
Colonoscopy
A camera test of the large bowel, with biopsy or polyp removal.
How fatty liver can progress
Most people with fatty liver never develop serious disease, but some do. Tap a stage to see what it means.
Treatment
The main treatments we offer
Choose a topic to see what treatment involves and how to stay safe.
Upper GI endoscopy
A thin, flexible camera is passed through the mouth to look at the food pipe, stomach and duodenum. Biopsies can be taken and some problems treated at the same time.
Diagnostic endoscopyBiopsyVariceal bandingStopping ulcer bleedingDilatationWhat to expect
- Fast for 6–8 hours before
- A throat spray or light sedation
- Usually 10–20 minutes
After the test
- Do not drive if sedated
- Eat once numbness wears off
- Report severe pain or black stools
Colonoscopy
A camera passed through the back passage examines the large bowel. Polyps can be removed and biopsies taken.
Diagnostic colonoscopyPolyp removalBiopsyWhat to expect
- Bowel preparation the day before
- Sedation for comfort
- A short stay for recovery
After the test
- Mild bloating is common
- Do not drive if sedated
- Report heavy bleeding or severe pain
Endoscopic treatment of the bile duct
ERCP uses an endoscope and X-rays to remove bile duct stones or place stents to relieve blockages, without open surgery.
Stone removalBiliary stentingSphincterotomyWhat to expect
- Sedation or anaesthesia
- A short hospital stay
- Gallbladder removal may be advised later
After the procedure
- Report abdominal pain, fever or vomiting
- Follow diet advice
- Attend follow-up for stent removal if needed
Treatment of liver disease
Liver disease is treated by addressing the cause — weight, alcohol, viruses or medicines — and preventing complications with regular checks.
Fatty liver programmeHepatitis B and C treatmentCirrhosis careLiver cancer surveillanceWhat to expect
- Regular blood tests and scans
- Diet and exercise plan
- Vaccination for hepatitis A and B where needed
Staying safe
- Avoid alcohol completely if you have liver disease
- Ask before taking herbal medicines
- Report confusion, bleeding or swelling
Treatment of acid and stomach problems
Most acidity and ulcer problems improve with medicines, treating H. pylori and lifestyle changes.
Acid-reducing medicinesH. pylori treatmentDiet adviceWhat to expect
- A course of treatment for a set time
- Review of symptoms
- Endoscopy if symptoms persist
Good habits
- Eat smaller meals and avoid lying down after eating
- Limit spicy, fried food, tea and coffee if they trigger symptoms
- Avoid painkillers without advice
Long-term bowel care
IBD and IBS need long-term plans that may include medicines, diet changes and regular reviews.
IBD medicinesDiet plansRegular colonoscopy for IBDWhat to expect
- Treatment adjusted to flares and remission
- Blood tests to monitor medicines
- Joint care with GI surgery if needed
Good habits
- Take medicines even when you feel well
- Keep a symptom and food diary
- Report bleeding or weight loss
Services
Gastroenterology services at Charak
Tests, procedures and guides. Tap a card to read more.
Your visit
What happens, step by step
Step 1
Consultation
Tell us about your symptoms, diet and medicines.
Step 2
Tests
Blood, stool and ultrasound tests, often the same day.
Step 3
Endoscopy if needed
Planned with fasting or bowel preparation advice.
Step 4
Diagnosis & plan
Results and treatment explained.
Step 5
Treatment
Medicines, diet plan or endoscopic procedure.
Step 6
Follow-up
Reviews to check progress.
Liver check
Fatty liver is very common — and often silent
Fatty liver is found in many adults in India, especially those with extra weight around the waist, diabetes or high cholesterol. It can be reversed in its early stages.
Who should have a liver check
Ask for a liver test and ultrasound if any of these apply:
- !Diabetes or prediabetes — fatty liver is common.
- !Extra weight around the waist or high cholesterol.
- !Regular alcohol use — any amount.
- !Hepatitis B or C in the family or a past blood transfusion.
Liver and gut care at Charak
- Consultations with our gastroenterologists.
- Diet plans with our dietitians.
- Diabetes care with the endocrinology team.
Liver-friendly habits
Tap each one you do:
- I walk or exercise at least 30 minutes most days
- I am working towards a healthy weight
- I avoid alcohol
- I limit sugar, sweets and sugary drinks
- I limit fried food and refined flour
- I avoid unprescribed herbal or body-building supplements
- I have had hepatitis B vaccination
Even a 5–10% weight loss can reduce liver fat.
Book a liver check
Living well
Living well with a digestive or liver condition
General guidance — always follow the specific advice your doctor gives you.
Acidity
Eat smaller meals, avoid late dinners and raise the head of the bed if symptoms are worse at night.
Notice triggers such as spicy food, tea, coffee or smoking.
IBS
Eat regular meals and try reducing foods that trigger symptoms.
Stress management and regular exercise help many people.
IBD
Take your medicines even when you feel well.
Report blood in stools, fever or weight loss promptly.
Fatty liver
Aim for gradual weight loss with diet and exercise.
Control sugar and cholesterol and avoid alcohol.
Cirrhosis
Limit salt, avoid alcohol and take medicines as prescribed.
Attend scans every 6 months to check for complications.
Before endoscopy or colonoscopy
Fast as advised and follow the bowel preparation instructions carefully.
Bring a family member if you will be sedated.
Contact us urgently if
- Vomiting blood or passing black stools
- Severe abdominal pain
- Jaundice with fever, confusion or drowsiness
- A swollen, tight abdomen with breathlessness
- Severe vomiting or diarrhoea with dehydration
- Fever and pain after an endoscopic procedure
Family care
Digestive care for every stage of life
Children
- Abdominal pain, vomiting and loose motions
- Jaundice in children needs assessment
- Joint care with paediatrics
Working adults
- Acidity, IBS and stress
- Fatty liver with weight gain
- Alcohol-related liver problems
Older adults
- New bowel symptoms after 45 need checking
- Painkillers can cause ulcers and bleeding
- Bowel cancer screening
Prevention
Gut and liver checks
These are general guides. Your doctor may advise different timings based on your health.
| Who | What we recommend | How often |
|---|---|---|
| Adults 45 and above | Discuss bowel cancer screening | As advised |
| People with diabetes or obesity | Liver function tests and ultrasound | Every year |
| People with hepatitis B | Liver tests and ultrasound | Every 6–12 months |
| People with cirrhosis | Ultrasound and AFP test | Every 6 months |
| People with long-standing IBD | Surveillance colonoscopy | As advised |
| Everyone not immune | Hepatitis B vaccination | Once (3 doses) |
Eat fibre-rich, home-cooked food
Exercise most days
Avoid alcohol
Wash hands and drink safe water
Get vaccinated against hepatitis B
Avoid painkillers without advice
Myths & facts
Clearing up common misunderstandings
Tap a card to see the fact.
Myth
“Fatty liver is harmless.”
Tap to flipFact
Most fatty liver is mild, but in some people it causes inflammation and scarring. It is worth treating early.
Myth
“Jaundice should be treated with home remedies.”
Tap to flipFact
Jaundice has many causes, some serious. A doctor should find the cause.
Myth
“Endoscopy is very painful.”
Tap to flipFact
Endoscopy is usually done with a throat spray or sedation and is generally well tolerated.
Myth
“Spicy food causes ulcers.”
Tap to flipFact
Most ulcers are caused by H. pylori infection or painkillers. Spicy food can worsen symptoms in some people.
Myth
“Only drinkers get liver disease.”
Tap to flipFact
Fatty liver linked to weight and diabetes is now a common cause of liver disease.
Myth
“Constipation means you need a laxative every day.”
Tap to flipFact
Fibre, fluids and activity help most people. Long-term laxative use should be guided by a doctor.
Our doctors
Meet our gastroenterology team
Gastroenterologist
Dr. Saransh Singh
MBBS, MD, DNB (Gastroenterology)
Acidity, ulcers, IBS, fatty liver, hepatitis and endoscopy. OPD: Monday to Saturday, 10 am – 5 pm.
Practical help
Preparing for your visit, costs & insurance
A little preparation helps us make the most of your appointment.
What to bring to your visit
Tick off as you pack:
- All previous reports — ultrasound, endoscopy, colonoscopy and blood tests
- All current medicines, especially blood thinners and painkillers
- For endoscopy: fast for 6–8 hours as advised
- For colonoscopy: follow the bowel preparation instructions
- A family member if you will have sedation
- A list of the questions you want to ask
Costs & insurance
Costs depend on the tests and treatment you need. Ask our team for a written estimate before planned tests, procedures or admission.
- ✓Written estimate— ask for one before planned procedures or admission.
- ✓Health insurance & TPA— cashless treatment for admissions under tie-up insurers; outpatient visits depend on your policy.
- ✓Ayushman Bharat (PM-JAY) accepted for eligible admissions.
- ✓Corporate & PSU panels— ask whether your employer has a tie-up with Charak Hospital.
*Coverage depends on your policy and the treatment. Our insurance desk can check this for you.
Call 0522-666-4444
FAQs
Frequently asked questions
Do I need an endoscopy for acidity?
Not always. Endoscopy is advised if acidity persists despite treatment, or if you have difficulty swallowing, vomiting, weight loss, anaemia or are over 45 with new symptoms.
Is endoscopy safe?
It is a common, generally safe test. Your doctor will explain the small risks before the procedure.
Can fatty liver be cured?
Early fatty liver can often be reversed with weight loss, exercise and avoiding alcohol.
Is hepatitis B curable?
Hepatitis B can usually be controlled with medicines; hepatitis C can usually be cured with tablets. Vaccination prevents hepatitis B.
What is ERCP used for?
ERCP is used to remove bile duct stones and to place stents to relieve blockages of the bile duct or pancreas.
How should I prepare for a colonoscopy?
You will be given a bowel preparation to drink the day before and advised on diet. Follow the instructions carefully so the bowel is clean.
When do digestive problems need a surgeon?
When there are gallstones with symptoms, some complications of ulcers or IBD, hernias or tumours. We work closely with the GI surgery team.
How do I book an appointment?
Call 0522-666-4444 or use the request call back form on this page. For vomiting blood or black stools, come straight to the 24×7 emergency.
Glossary
Words you may hear from your gastroenterologist
EndoscopyA camera test of the upper digestive tract.
ColonoscopyA camera test of the large bowel.
ERCPAn endoscopic procedure for the bile duct and pancreas.
BiopsyA small tissue sample for testing.
PolypA small growth in the bowel lining.
GERDGastro-oesophageal reflux disease.
GastritisInflammation of the stomach lining.
Peptic ulcerA sore in the stomach or duodenum.
H. pyloriA bacterium that causes gastritis and ulcers.
IBSIrritable bowel syndrome.
IBDInflammatory bowel disease — ulcerative colitis or Crohn’s disease.
Fatty liverBuild-up of fat in the liver.
HepatitisInflammation of the liver, often from a virus.
CirrhosisAdvanced scarring of the liver.
VaricesSwollen veins in the food pipe or stomach in liver disease.
BilirubinA yellow pigment that rises in jaundice.
ALT / ASTLiver enzymes measured in blood tests.
AFPA blood marker used to monitor for liver cancer.
MRCPAn MRI of the bile ducts and pancreas.
AscitesFluid in the abdomen, often in cirrhosis.
No matching term. Please ask your doctor at your next visit.
Related pages
Related departments and guides
Acidity, bowel problems or a liver report to discuss?
Speak with our gastroenterology team. For vomiting blood or black stools, come straight to the 24×7 emergency.
Medical information disclaimer: This page provides general health information for patients and families. It is not a substitute for a consultation, diagnosis or treatment by a qualified doctor. Treatment decisions depend on each patient's individual condition. In an emergency, call 0522-666-4444 or go to the nearest emergency department.
About this page: Prepared by the Charak Hospital web team with the help of AI writing tools, using information from the Department of Medical Gastroenterology & Hepatology, Charak Hospital & Research Centre · Last updated: October 2026
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