Skip to main contentAhmedabad and Gandhinagar · Dr Harsh Shah, Rectal Cancer Surgeon
Most people who come to Dr Harsh Shah with a cancer low in the rectum are asking one question before any other: will I be left with a permanent bag? For a large share of low rectal cancers the answer is no — the sphincter can be preserved and the bowel rejoined. Whether that is possible in your case is decided by one thing above all: how far the tumour sits from the anal verge and whether it has grown into the sphincter muscle. A pelvic MRI answers that, and it is answered before anything is committed to.
Shah’s Gastro, Cancer & Robotic Surgery Centre
Dr Harsh Shah
MS, MCh (Surgical Gastroenterology), DrNB (Surgical Gastroenterology)
Rectal Cancer Surgeon
· Apollo Hospital, Bhat, Gandhinagar · Gota OPD, Ahmedabad
Trained in surgical gastroenterology at the highest level, qualified twice over in the speciality, and in practice long enough to have seen how these decisions play out over years rather than weeks. Google rating 4.89 from 216 reviews at the Gota clinic, and 4.94 from 17 reviews at the Apollo, Bhat listing.
Lower rectal cancer means a cancer sitting in the bottom third of the rectum, within roughly six centimetres of the anal verge. It matters because everything below that line sits next to the sphincter muscle that gives you control of your bowels — so the same disease, a few centimetres higher, is a different operation with a different consequence.
Surgeons divide the rectum into thirds for a practical reason. A cancer in the upper rectum can be removed and the bowel rejoined without going near the muscle that holds stool in. A cancer in the lower rectum cannot be treated as the same problem: the margin of healthy tissue that must come out below the tumour is measured in centimetres that may simply not exist.
So Dr Harsh Shah insists the distance is measured properly — on digital rectal examination and again on a rigid sigmoidoscopy, because a flexible scope consistently over-estimates how high a tumour sits. A tumour wrongly recorded as mid-rectal leads to a plan the anatomy will not support.
Rectal bleeding is the symptom that brings most people in and the one most often dismissed. Dark blood mixed through the stool, blood with mucus, a change in bowel habit, a feeling of needing to go that does not settle, unexplained weight loss or anaemia — all deserve an examination of the rectum. Dr Harsh Shah does not treat piles, fissures or fistulas, but he sees the cost of bleeding being attributed to them without anyone examining the rectum.
A pelvic MRI is the pivotal test in rectal cancer, and no treatment decision is made before one exists. Rectal cancer is an MRI-driven, team-driven disease: the scan, not the surgeon's impression at examination, decides whether chemotherapy comes first, whether radiotherapy is added, and whether the sphincter can be saved.
What Dr Harsh Shah asks the radiologist for is a structured report, not a paragraph: depth of the tumour through the bowel wall, distance from the tumour to the mesorectal fascia — the envelope the surgeon dissects along — tumour growing inside veins, the state of the lymph nodes, height from the anal verge, and for a low tumour, whether the sphincter or levator muscle is involved. A report missing the sphincter comment is sent back. That is the sentence the whole plan turns on.
| Test | What it decides | When |
|---|---|---|
| Digital rectal examination | Distance from the anal verge, which quadrant, whether the tumour is fixed, whether the sphincter feels involved | First visit, always |
| Rigid or flexible sigmoidoscopy with biopsy | Confirms the diagnosis; records the true height on a rigid scope | First visit or soon after |
| Pelvic MRI | The pivotal test — risk tier, margin threat, sphincter involvement, nodes | Before any treatment decision |
| Full colonoscopy | Excludes a second cancer higher in the colon | Before surgery, or within months after if the bowel was obstructed |
| CT scan of chest, abdomen and pelvis | Whether the disease has spread beyond the pelvis | With the MRI |
| CEA blood test | A baseline to follow afterwards | At diagnosis |
| MMR / MSI testing on the biopsy | Identifies the subgroup that responds to immunotherapy | Universal, on every tumour |
Two things there are time-critical and routinely forgotten: a fertility and sperm or egg preservation discussion in anyone of reproductive age, because once pelvic radiotherapy has started that conversation is too late; and stoma siting, marked on the abdomen by the stoma nurse before any operation that could produce a stoma, because a badly sited stoma is a lifelong and entirely avoidable nuisance.
Not every rectal cancer needs treatment before surgery, and not every one that does needs radiotherapy. The MRI sorts patients into three groups, and the honest headline is that modern practice gives less radiotherapy than it used to, because pelvic radiotherapy carries lasting costs to bowel, bladder, sexual function and fertility.
Where the cancer is early and the MRI margins are comfortably clear, Dr Harsh Shah goes straight to surgery — no chemotherapy, no radiotherapy. Where the tumour is more advanced but the critical margin is not threatened, chemotherapy alone before surgery is now an accepted route, with radiotherapy kept back for those who do not respond. That spares the durable pelvic side effects of radiotherapy without giving up disease control, and it is worth asking whether it applies to you.
Where the tumour is bulky, threatens or has reached the mesorectal fascia, has grown into veins, or sits very low, everything moves before the operation — all the chemotherapy and radiotherapy first, then surgery. Giving everything first is deliberate: chemotherapy is better tolerated before a major operation than after one, and shrinking the tumour away from the sphincter is what opens the door to preserving it.
Surgery then follows a gap of roughly two to three months after radiotherapy ends, because operating into a freshly irradiated pelvis raises the risk of the join leaking and the perineal wound failing. The wait is part of the treatment, not a delay in it.
The operation for rectal cancer is total mesorectal excision: the rectum is removed inside its intact fatty envelope, dissected sharply along a natural plane, with a clear margin all the way round. The oncological standard does not change with the height of the tumour. What changes is whether the bowel can be rejoined to the anal canal afterwards, or whether the sphincter has to go with the specimen.
Dr Harsh Shah treats specimen quality as the endpoint, not the size of the incision. The pathologist grades whether the mesorectal envelope came out intact and whether the margin is clear, and those grades predict whether the cancer returns in the pelvis — so he treats them as a personal audit measure, not a report to be filed.
| Situation | Operation | Stoma |
|---|---|---|
| Low rectum, sphincter not involved | Low anterior resection with total mesorectal excision and a join to the anal canal | Temporary ileostomy, usually reversed later |
| Low tumour, good baseline continence, no sphincter invasion | Intersphincteric resection — the inner sphincter is taken, the outer preserved | Temporary ileostomy |
| Very low tumour growing into the sphincter complex, or poor continence to begin with | Abdominoperineal excision — rectum and anus removed together | Permanent colostomy |
| Small, superficial, favourable tumour | Local excision through the anus | None |
| Tumour involving a neighbouring pelvic organ | Removal of the involved structures in one block, decided by the team | Depends on what is removed |
The honest part of this conversation is the third row. Where the cancer has grown into the muscle that provides continence, removing the sphincter is not a failure of technique or ambition — it is what clears the cancer. Preserving a sphincter with tumour in it trades a cure for a function that will not work well anyway. Dr Harsh Shah says this before the operation, not after.
One other judgement is stated openly: he will not dissect a tumour off a structure it is stuck to in order to avoid a bigger operation. It comes out in one block or the plan changes. And whatever approach the operation starts with, it converts without hesitation if the plane is being lost.
A temporary ileostomy is made with almost every low join. It does not prevent the join from leaking — it converts a leak that would be catastrophic into one that is manageable. It is normally reversed after a few months, once any chemotherapy is finished and a contrast study has confirmed the join is intact.
Patients hear “stoma” and stop listening, so it is worth being precise. A loop of small bowel is brought to the skin above the join so stool bypasses it while it heals. A low join is the most vulnerable anastomosis anywhere in bowel surgery, and the ileostomy is the insurance against that — the reason a leak in a defunctioned patient is usually managed without a second major operation.
Reversal is planned a few months after surgery, after adjuvant chemotherapy if given, and only once a contrast study shows the join has healed. A minority are never reversed — because of fitness, because the join did not heal, or because a trial showed function would be poor. Small but not zero, and Dr Harsh Shah counsels it as a real possibility rather than a footnote.
The limiting step in getting home is almost never the abdomen. It is stoma independence — the patient or a family member changing the appliance unaided — which is why teaching starts the day after surgery.
Two conversations happen before surgery rather than after it. First: in some patients the tumour cannot be found at all after chemotherapy and radiotherapy, and not operating becomes a legitimate option — but only as an intensive surveillance programme, examination, endoscopy and MRI every three to four months, with surgery accepted if it regrows. Where a patient cannot realistically attend that follow-up, Dr Harsh Shah says plainly that the option is not open to them.
Follow-up runs to a schedule: review at two weeks with the histology discussion, then three-monthly for three years, then six-monthly to five years, with an annual CT scan and colonoscopy at one year.
★★★★★
“We came from Udaipur, Rajasthan for my husband's rectal cancer surgery. Dr. Harsh Shah performed the operation with great expertise and care. He explained everything clearly and supported us throughout the treatment. The surgery was successful, and we are very grateful for the excellent care we received. Dr. Harsh Shah is one of the best rectal cancer surgeons. Highly recommended!" — Bhupendar Dave, 5 stars, Dr Harsh Shah – Robotic GI Surgeon, Apollo, Bhat”
★★★★★
“I underwent surgery for rectal cancer by Dr. Harsh Shah, and I am very satisfied with the entire experience. He is truly one of the best doctors for rectal cancer surgery. His expertise, care, and guidance made a big difference in my recovery. The surgery went smoothly, and I felt confident throughout the treatment process. Highly recommended for anyone looking for the best care in rectal cancer treatment." — Mamta Somar, 5 stars, Dr Harsh Shah, Gota, Ahmedabad”
★★★★★
“I would like thanks Dr harsh shah operated my wife for rectal cancer . We discharged today. And she is good now. Thank u so much sir for everything. Best GI and Rectal cancer surgeon in ahmedabad." — Bajrang Singh, 5 stars, Dr Harsh Shah, Gota, Ahmedabad”
These are unedited Google reviews from patients treated for rectal cancer, quoted word for word from the Dr Harsh Shah listings, including the original spelling and phrasing.
From first consultation to full recovery there are five stages, and you are told at each one what happens next and when.
Rectal cancer surgery is covered by most health insurance policies and by cashless arrangements at Apollo Hospital, Bhat. The estimate depends on the operation planned, the room category, how long you stay and whether chemotherapy or radiotherapy forms part of the treatment — so it is prepared for your case rather than quoted from a list.
What moves the estimate: which operation is done and by which approach; whether a stoma is made and later reversed, which is a second admission; the room category you choose; the length of stay, which is longer if recovery is complicated; whether the treatment plan includes chemotherapy or radiotherapy alongside surgery; and the cost of the pathology and imaging needed to plan and follow up.
On insurance, the office prepares the pre-authorisation paperwork with the clinical justification, and cashless approval is sought before admission wherever the policy allows. Bring your policy document, your ID, your previous hospital records, all imaging on disc as well as on film, and the biopsy report. Where a policy declines something, the reason is explained to you and an appeal is drafted if there are grounds for one.
No. A permanent stoma is needed only when the cancer has grown into the sphincter muscle itself, or when continence was already poor before the cancer. For many low tumours the sphincter is preserved and the bowel rejoined, with a temporary ileostomy that is reversed later. Your pelvic MRI is what decides this.
Sometimes, yes. Where the MRI shows the critical margin is not threatened, chemotherapy alone before surgery is an accepted route, with radiotherapy held back for those who do not respond. That avoids the lasting pelvic effects of radiotherapy. It does not apply where the margin is threatened or involved — those tumours need radiotherapy.
Often not immediately. Urgency, frequency, clustering of stools and some loss of control are common after a low join, and are known together as low anterior resection syndrome. It improves over one to two years and is actively treated with bowel retraining, medication, pelvic floor physiotherapy and irrigation where needed.
The approach matters less than the quality of the specimen. Open, laparoscopic and robotic total mesorectal excision are all acceptable in experienced hands, and robotic instruments have an ergonomic advantage in a narrow pelvis. Dr Harsh Shah selects the approach for the individual pelvis and converts without hesitation if the dissection plane is being lost.
It could. Rectal bleeding should never be attributed to piles without someone examining the rectum. Dr Harsh Shah does not treat piles, fissures or fistulas, but he does see rectal cancers that were called piles for months. If bleeding has continued despite treatment for piles, ask for an examination and a scope.
Shah’s Gastro, Cancer & Robotic Surgery Centre
Gota, Ahmedabad, Gujarat
Google rating 4.89 from 216 reviews
Dr Harsh Shah consults at two addresses in the Ahmedabad–Gandhinagar area: the clinic at Gota, Ahmedabad, and Apollo Hospital at Bhat, Gandhinagar.
Patients travel to Dr Harsh Shah for rectal cancer surgery from across Gujarat — Gandhinagar, Rajkot, Surat, Vadodara, Bhavnagar, Jamnagar, Junagadh, Mehsana and Kutch — and from Rajasthan and Madhya Pradesh. If you are travelling from outside Ahmedabad, send your scans and reports on WhatsApp first so the consultation can be productive on the day you arrive.
This operation is one part of what a colorectal surgeon does. For the other colon and rectal conditions that are treated, how the first visit works and which reports to bring, read colorectal surgeon in Ahmedabad: what is treated and when to see one.
Bring the MRI and we will tell you where you stand. A second opinion on a low rectal cancer is worth having before surgery, not after. Call +91-63555-64601 · WhatsApp Dr Harsh Shah's office
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