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What Is Sphincterotomy and When Is It Performed?

Sphincterotomy is a medical procedure in which a surgeon makes a small cut in the sphincter muscle — a circular muscle that helps control bowel movements — to release too much tightness or pressure that causes severe pain or tears in the anus or bowel area. It is often used to treat conditions like chronic anal fissures (long-lasting tears in the skin around the anus) that have not healed with other treatments like medicine or ointments.

There are different forms of sphincterotomy depending on the area being treated, such as anal sphincterotomy (to relieve pressure and help healing) or sphincter of Oddi sphincterotomy (to open digestive ducts during an ERCP procedure). This content focuses mainly on the typical surgical type used for anal fissures.

Purpose & Benefits of Sphincterotomy

Sphincterotomy is done to relieve muscle tightness and improve healing and comfort.

• Relieves pain: When the sphincter muscle is too tight, it can cause constant pain especially during bowel movements. Cutting a small part of the muscle can ease this pressure and stop pain.
• Helps heal chronic fissures: For anal fissures that do not heal with medicines or home care, sphincterotomy has a high success rate in allowing lasting healing.
• Improves quality of life: By reducing pain and promoting healing, it helps people return to normal activities.
• Quick recovery: Most patients can go home the same day and resume light activities within a week or so.
• High success for appropriate cases: Carefully selected patients usually benefit greatly compared with continued non-surgical treatments.

Who May Benefit from Sphincterotomy?

Sphincterotomy may be recommended if you:

• Have a chronic anal fissure that does not heal with creams or medicines.
• Experience severe pain or bleeding with bowel movements because the muscle is too tight.
• Have tight sphincter muscles that delay healing and cause discomfort.
• Are otherwise healthy enough to undergo a minor surgical procedure.

Doctors carefully evaluate your medical condition and may suggest this procedure when conservative care hasn’t helped.

Sphincterotomy Treatment Process

1. Consultation & Evaluation: The surgeon checks your symptoms, examines the affected area, and discusses whether sphincterotomy is suitable for you.

2. Anesthesia: The procedure is done under local anesthesia (numbing the area) or light sedation so you don’t feel pain.

3. Surgical Cut: A small controlled cut is made in the sphincter muscle to reduce muscle tightness and pressure.

4. Post-Op Care: After the cut is made, the wound is typically left to heal naturally. You may be advised to keep the area clean, use sitz baths, and follow dietary advice.

5. Follow-Up: The surgeon checks healing and may recommend stool softeners or fiber to ease bowel movements as recovery progresses.

Duration & Setting

Sphincterotomy is usually done in a hospital or surgical centre as a same-day outpatient procedure.

· The procedure typically takes about 20–30 minutes or a little longer depending on the individual case.

· Most people return home the same day and resume light activity within 1–2 weeks, with full healing over several weeks.

Safety, Precautions & Risks

Sphincterotomy is generally safe when performed by experienced surgeons, but like all procedures it carries some risks.

Common mild effects:

· Soreness and mild pain around the site for a few days.

· Slight bleeding and irritation as the area heals.

Possible risks:

· Infection or bleeding: Rare but possible after any surgery.

· Temporary leakage or minor fecal incontinence: May happen while healing but often resolves over time.

· Pain during bowel movements initially: Common in the early days of recovery.

· Rare long-term incontinence: Very uncommon but may occur in some individuals.

Your surgeon will explain all risks before the procedure so you can be fully informed.

Sphincterotomy vs Non-Surgical Treatment

· Non-surgical care: Includes ointments, sitz baths, high-fiber diets, and medicines aimed at relaxing the muscle and relieving pain. These are less invasive but may not work for chronic fissures.

· Sphincterotomy: A small surgical cut directly reduces muscle tightness and promotes faster healing when non-surgical care has failed.

Surgery offers higher success rates for long-standing, painful fissures compared with conservative care alone.