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Lateral sphincterotomy

Surgery for anal fissures

Our surgeons can carry out this simple procedure to treat complicated anal fissures, if other treatments have failed

About

Anal fissures are small tears near your back passage. They can be extremely painful and sometimes lead to bleeding after you poo. If your internal anal sphincter muscle spasms, it can reduce blood flow to the area, stopping it from healing. If this happens, we can carry out a lateral sphincterotomy.

Need to know

  • What happens icon plus

    Your consultant will start by making a tiny cut in an area of skin near your back passage. This will let them access your internal anal sphincter muscle and cut a few strands of muscle. This will improve the flow of blood to your fissure and help it heal. This simple procedure is carried out under general anaesthetic, which means you'll be asleep.
  • How to prepare icon plus

    Your consultant will explain the procedure to you and answer any questions you might have. Like all procedures, there may be some risks and side effects involved. Your consultant will explain these to you.
  • Afterwards icon plus

    A lateral sphincterotomy is a relatively effective treatment — in some cases, some people experience a decrease in fissure-related pain within a day of the procedure. You should be able to go home on the day of your surgery. Your consultant or nurse specialist will let you know when you can get back to your usual routine, including work or exercise. They'll also give you laxatives for the first few days to soften the stool and allow healing of the small anal wound.
Consultant with patient

Our consultants

From complex surgery to straightforward procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

Our facilities

From complex surgery to straightforward procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

  • facility-pgh-hero-579x579

    The Princess Grace Hospital

    42-52 Nottingham Place

    London W1U 5NY

    Appointments 020 3131 7216
    Enquiries 020 3130 6833

  • London Bridge Hospital Facility

    London Bridge Hospital

    27 Tooley Street

    London

    SE1 2PR

    Appointments and Enquiries 020 7234 2009
    Imaging Appointments 020 7234 2773
    Switchboard 020 7407 3100

Request an appointment

We're happy to help you make an appointment with one of our experienced consultants.

This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
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