Frequently asked questions
সাধারণ জিজ্ঞাসা
Clear answers to the questions patients ask most often.
Piles, fissure & fistula
What is colorectal surgery?
Colorectal surgery is the specialty that deals with disorders of the colon, rectum and anus. It includes advanced surgical treatment of conditions such as severe piles, anal fistula, fissure and colorectal cancer.
What is the difference between piles, anal fissure and fistula?
All three affect the anal area but are different problems. Piles (haemorrhoids) are swollen vascular cushions that usually cause painless bright-red bleeding. An anal fissure is a small tear in the lining that causes sharp pain during and after a bowel movement. An anal fistula is an abnormal tunnel between the anal canal and the skin, usually after an abscess, causing recurrent pus and swelling.
Can piles be treated without painful open surgery?
Yes. Many early piles improve with diet, fibre and medicine. When a procedure is needed, modern options such as laser hemorrhoidoplasty (LHP) and stapler anopexy (MIPH) avoid cutting the sensitive anal skin, so there is usually much less pain and a faster recovery than with traditional open surgery.
What causes bleeding during bowel movements, and when should I see a colorectal surgeon?
Common causes include piles, anal fissure, polyps, inflammatory bowel disease and, less commonly, colorectal cancer. Bleeding should never be ignored. See a surgeon promptly if it keeps happening, or if it comes with a change in bowel habit, weight loss, tiredness or anaemia.
What are the symptoms of an anal fistula, and why is specialist treatment important?
Typical symptoms are recurring pain and swelling beside the anus and discharge of pus or blood-stained fluid. Untreated fistulas can branch and become complex. Specialist, sphincter-preserving treatment aims to cure the fistula while protecting the muscles that control continence.
Laparoscopic & hernia
What are the benefits of laparoscopic (minimally invasive) surgery?
Laparoscopic surgery is done through small "keyhole" incisions using a camera. Compared with open surgery it usually means much less pain, minimal bleeding, a shorter hospital stay and a faster return to normal activities.
What is laparoscopic gallbladder surgery and how quickly will I recover?
Laparoscopic cholecystectomy removes the gallbladder through 3–4 small cuts (5–10 mm) using a camera. Most patients walk within hours, go home in 24–48 hours and return to desk work within about a week.
What are the warning signs of acute appendicitis?
Pain often starts around the navel and moves to the lower right abdomen, becoming sharp and constant, with fever, nausea, vomiting and loss of appetite. This needs urgent surgical assessment to prevent the appendix from bursting.
What is the difference between Lichtenstein mesh repair and Desarda repair for hernia?
Lichtenstein repair reinforces the weak groin wall with a mesh. Desarda repair is a pure-tissue repair that uses a strip of the patient's own tissue, without mesh. Both are established techniques; the choice depends on the patient's age, tissues and type of hernia.
Chambers & booking
When should I consult Dr. Tanvir Ahmed?
Consult him if you have chronic abdominal pain, bleeding from the back passage, painful bowel movements, a swelling in the groin (hernia), gallbladder problems, or if you need assessment of a gastrointestinal, breast or thyroid lump.
What should I bring to my first consultation?
Please bring your medical history, previous prescriptions, ultrasound (USG) reports, endoscopy or colonoscopy results and any recent blood tests. This helps the doctor reach an accurate diagnosis quickly.
How do I book an appointment with Dr. Tanvir Ahmed?
For SIBL Foundation Hospital (Panthapath) call the serial number 09958-33999 or the hospital hotline 09696-154400. For Alliance Colorectal & Biofeedback Center (Shyamoli) call 01729-966606. You can also send a WhatsApp message to 01672-586600 or use the online booking form on this website.
Colorectal cancer
What are the warning signs of colon or rectal cancer?
A change in bowel habit lasting more than three weeks, blood in the stool, a feeling of incomplete emptying, unexplained weight loss, tiredness or anaemia. These symptoms have many causes, but they should always be checked by a doctor.
Biofeedback & pelvic floor
What is biofeedback therapy and how does it help constipation?
Biofeedback is a painless, computer-guided training programme. Sensors show how your pelvic floor muscles are working, and a therapist guides you to relax and push in a coordinated way. It helps constipation caused by pelvic floor dyssynergia and can also improve faecal incontinence.
Don't ignore bleeding, pain or a change in bowel habit
Early assessment by a colorectal surgeon makes treatment simpler. Call for a serial or send a WhatsApp message.