Health Library & Knowledge Hub
Find trusted answers for every digestive, liver, GI cancer and endoscopy condition — 24 doctor-written guides from a gastro surgeon in Ahmedabad, all in one searchable place.
Written & reviewed by Dr. Avinash TankBrowse by how you feel
Pick the symptom closest to yours to jump straight to the right guide.
I keep getting heartburn or a sour taste after meals.
Read the guide 1 related guide I have abdominal PainPain in the belly, often after eating or on one side.
Read the guide 4 related guides I have jaundiceMy eyes or skin have turned yellow.
Read the guide 1 related guide I have bleeding / PilesBlood while passing stool, or a lump near the anus.
Read the guide 4 related guides I have swelling / LumpA bulge in the abdomen or groin, especially on straining.
Read the guide 1 related guide I have constipationDifficulty passing stool, or a change in bowel habit.
Read the guide 3 related guidesExplore by body system
Every organ, with the conditions and procedures linked to it.
Conditions, explained
Tap a condition to expand it — symptoms, related guides and treatment options. Or browse all conditions & symptoms A–Z →
GERD & Acidity (Acid Reflux)Acidity (Reflux)
GERD (gastro-esophageal reflux disease) is the backflow of stomach acid into the food pipe, causing heartburn, regurgitation and chest discomfort. It is treated first with lifestyle changes and medicines, and with keyhole anti-reflux surgery when symptoms persist.
Read the full guideGallbladder Stones (Gallstones)Abdominal Pain
Gallbladder stones are hardened deposits in the gallbladder that can cause right-upper-abdomen pain, especially after fatty meals. The definitive treatment is laparoscopic gallbladder removal (cholecystectomy), a safe day-care keyhole surgery.
Read the full guideHernia (Inguinal, Umbilical, Incisional, Hiatus)Abdominal Pain
A hernia is a bulge that occurs when an organ or tissue pushes through a weak spot in the abdominal wall. Hernias do not heal on their own; the durable treatment is laparoscopic mesh repair, which restores strength with minimal pain and fast recovery.
Read the full guideAppendicitisAbdominal Pain
Appendicitis is inflammation of the appendix that causes pain typically shifting to the right lower abdomen, with nausea, loss of appetite and fever. It is a surgical emergency, treated safely and quickly by laparoscopic (keyhole) appendix removal.
Read the full guidePiles (Haemorrhoids)BleedingConstipation
Piles (haemorrhoids) are swollen blood vessels in and around the anal canal that cause bright-red bleeding, discomfort, swelling and itching. Most improve with diet and minor office procedures; advanced piles are treated with modern, low-pain day-care surgery.
Read the full guideFissure-in-Ano (Anal Fissure)ConstipationBleeding
An anal fissure is a small tear in the lining of the anal canal that causes sharp, knife-like pain and a little bright-red bleeding during and after bowel movements. Most fissures heal with treatment; chronic fissures are cured with a quick, minor procedure.
Read the full guideFistula-in-Ano (Anal Fistula)Abdominal PainBleeding
An anal fistula is an abnormal tunnel connecting the inside of the anal canal to the skin near the anus, usually following an abscess. It causes recurrent discharge, pain and swelling, and is cured with surgery using sphincter-preserving techniques wherever possible.
Read the full guideRectal ProlapseConstipationBleeding
Rectal prolapse is the protrusion of the rectum through the anus, causing a visible lump, mucus, bleeding and difficulty controlling motions. It is corrected surgically — often by a keyhole (laparoscopic) operation that lifts and secures the rectum to restore normal function.
Read the full guideCirrhosis of the LiverJaundiceAscites
Cirrhosis is advanced, long-term scarring of the liver caused by ongoing damage such as hepatitis, fatty liver or alcohol. Management focuses on treating the cause, preventing complications, and screening for liver cancer; advanced disease may need transplantation assessment.
Read the full guideProcedures we perform
What each test or procedure is for, how comfortable it is, and what to expect.
Colonoscopy is an endoscopic examination of the large intestine using a thin flexible camera. It diagnoses bleeding, polyps and cancer, and can remove polyps in the same sitting — preventing colon cancer before it starts.
Comfort: Done under sedation — painlessTime: About 20–30 minutes, same-day discharge Learn more Gastroscopy (Upper GI Endoscopy)Gastroscopy is a quick, sedated examination of the food pipe, stomach and duodenum with a thin flexible camera. It investigates acidity, ulcers, swallowing problems, bleeding and early cancer — and allows a biopsy to be taken in the same sitting.
Comfort: Done under sedation or throat spray — quick and well-toleratedTime: About 10–15 minutes, same-day discharge Learn more ERCP (Bile Duct Endoscopy)ERCP is an advanced endoscopic procedure that treats problems of the bile and pancreatic ducts — clearing bile-duct stones, relieving blockages and placing stents — without the need for open surgery.
Comfort: Done under sedation or anaesthesiaAdvantage: Treats duct problems without open surgery Learn more EUS (Endoscopic Ultrasound)EUS combines endoscopy with high-resolution ultrasound to image the pancreas, bile duct and gut wall in fine detail — and to take precise, minimally invasive needle biopsies of deep lesions that are hard to reach any other way.
Strength: Detects and samples small, deep lesions accuratelyComfort: Done under sedation, similar to a gastroscopy Learn more Stenting (Endoscopic)Endoscopic stenting places a small expandable tube to relieve a narrowed or blocked food pipe, bile duct, stomach outlet or bowel — restoring passage, relieving jaundice or allowing eating, often without open surgery.
Benefit: Rapid relief of jaundice or swallowing/eating problemsComfort: Done endoscopically under sedation Learn more PEG (Feeding Tube Placement)PEG (percutaneous endoscopic gastrostomy) is an endoscopic technique to place a feeding tube directly into the stomach, providing safe, comfortable nutrition for people who cannot eat normally for a prolonged period.
Benefit: Reliable nutrition; more comfortable than a nasal tubeComfort: Placed endoscopically under sedation Learn more POEM (Per-Oral Endoscopic Myotomy)POEM is an advanced, incision-less endoscopic procedure that treats achalasia and related swallowing disorders by releasing the tight muscle at the lower end of the food pipe — restoring normal swallowing with no external cuts.
Benefit: Restores swallowing with no skin incisionsComfort: Performed endoscopically under general anaesthesia Learn moreWhat we treat
Every treatment pathway, from weight-loss surgery to robotic GI cancer surgery.
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Frequently asked questions
Long-standing untreated reflux can change the esophageal lining (Barrett's) and slightly raise cancer risk, which is why persistent symptoms should be assessed.
Pile bleeding is usually minor, but because bleeding can also signal colon or rectal cancer, it should always be assessed rather than assumed.
Vomiting blood, black stools, marked abdominal swelling, deep jaundice or confusion are warning signs that need urgent medical attention — see a gastro surgeon the same day.
It is usually a safe day-care keyhole procedure with small cuts, minimal pain and a return to routine within about a week.
Mesh repair is the global standard for durable hernia repair, with a low recurrence rate and excellent long-term outcomes.
No. It is done under sedation, so it is essentially painless, and most patients recover within an hour.
Both are minimally invasive; robotic surgery adds 3D vision and wristed instruments for extra precision in complex cases such as GI cancer or hernia repair.
Yes. The liver continues to make bile, and the vast majority of people digest food normally after gallbladder removal.
After keyhole repair, most people resume desk work within one to two weeks and heavier activity a little later.
Yes. The liver can regenerate, so a healthy liver often tolerates removal of the cancerous portion when planned carefully by a specialist.
After gallbladder removal, most people return to a completely normal diet within weeks — start low-fat, then reintroduce foods gradually.
A high-fibre diet, plenty of fluids, regular exercise and avoiding prolonged straining greatly reduce recurrence.
You will be asked to fast for a few hours beforehand so the stomach is empty, giving a clear and safe examination.
Look for an MCh-qualified surgical gastroenterologist with documented case volumes — Dr. Avinash Tank has 25+ years experience and 10,000+ bariatric & GI surgeries at Dwarika Hospital, South Bopal.
Yes — alongside the main clinic at Dwarika Hospital in Ahmedabad, Dr. Avinash Tank holds visiting consultations in Udaipur, Bhilwara, Jaipur, Rajkot and Vadodara.
Cost depends on the procedure and hospital package. Each service page under services.php lists typical cost ranges — contact the clinic for an exact, itemised estimate.
Super-specialist GI, bariatric & cancer surgeon. SGPGIMS (India's premier GI centre) + advanced training in Japan & South Korea. Read full profile →
Last reviewed: June 2026Your journey, step by step
Documented cases
Real, anonymised surgical cases — the authority competitors can't copy.
Stories from our patients
"Dr. Tank explained everything clearly and never rushed. My gallbladder surgery was smooth and I was home the next day. Truly patient-first care."
Gallbladder"After years of acidity, the keyhole surgery finally fixed it. Honest advice, no pressure, excellent result."
GERD"A colonoscopy caught a polyp early. Calm, reassuring and thorough — I am grateful for the careful approach."
Colonoscopy"Complex hernia repaired by keyhole surgery. Minimal pain, quick recovery, and a surgeon who genuinely listens."
HerniaNeed expert advice? Talk to Dr. Avinash Tank.
Knowledge helps you ask better questions — a consultation gives you answers. Get an honest, super-specialist opinion this week.