Thinking about fissure surgery

At a glance

If you are reading this, you have probably been dealing with a fissure for a while. Months of careful eating, sitz baths, topical treatments — and it is still there. Surgery has entered the conversation, and you are trying to figure out what that means for you.

This guide is not here to tell you what to do. It is a framework for organising your thinking, understanding what options exist, and feeling more prepared for the conversations ahead. The decision is yours, made with your surgeon.

When surgery becomes part of the conversation

Most people do not arrive at fissure surgery quickly. There is usually a path that leads here, and it looks something like this:

• Conservative care first — fibre, hydration, sitz baths, stool softening. This is the starting point for nearly everyone. Many fissures heal with this alone.
• Prescription topical treatments — when conservative care is not enough, a doctor may prescribe ointments designed to relax the internal sphincter and improve blood flow to the area. These are typically used consistently for 6 to 8 weeks.
• Still not healing — this is the point where a fissure is considered chronic. The tissue may have developed fibrotic edges, a sentinel pile, or other features that suggest it is unlikely to heal without further intervention.
• Specialist referral — a GP may refer to a colorectal surgeon. Or you may have been managing with a specialist already. Either way, this is where surgical options enter the discussion.

What “failed conservative care” means in practice is that you have given non-surgical approaches a genuine, consistent effort — usually over several months — and the fissure has not healed. It does not mean you did something wrong. Some fissures are simply stubborn.

People describe this stage differently. Some feel relief that there is a next step. Some feel anxious about the word “surgery.” Many feel both at the same time. All of those responses are completely normal.

The options at a glance

There are several surgical approaches for chronic fissures. Each targets the problem differently. The right choice depends on your specific situation — your anatomy, your treatment history, and what your surgeon recommends.

This section is a brief overview. We have detailed guides on each procedure linked throughout.

Lateral internal sphincterotomy (LIS)

A small, controlled cut is made to a portion of the internal anal sphincter muscle. This permanently reduces the spasm that restricts blood flow and prevents the fissure from healing. LIS has the highest reported success rates for chronic fissures. It is the most studied procedure for this condition.

See: Recovery after LIS surgery

Fissurectomy

The chronic fissure tissue — including any sentinel pile and fibrotic edges — is surgically removed. This creates a fresh, clean wound that the body can heal properly. Fissurectomy does not involve cutting the sphincter muscle, which some people and surgeons prefer.

See: Fissurectomy: what to know

Fissurectomy with botox

Increasingly common. The fissurectomy removes the chronic tissue while a botox injection temporarily relaxes the sphincter. This combination addresses both the tissue problem and the muscle spasm without permanently altering the sphincter. The botox effect typically lasts 2 to 3 months — the window during which the fresh wound heals.

See: Fissurectomy: what to know and Botox for fissure

Advancement flap

A less common procedure, typically reserved for complex or recurrent fissures, or situations where other approaches have not worked. Healthy tissue is moved to cover the fissure site. Your surgeon will explain whether this is relevant to your situation.

What people weigh

When people are deciding between surgical options, these are the considerations that come up most often. Not everyone weighs them the same way. What matters most to you is personal.

Success rates

• LIS has reported success rates above 90 percent for chronic fissures in most studies. It is the most established surgical option.
• Fissurectomy with botox has good reported outcomes, though success rates vary more between studies and between surgeons. It is a newer combination that is gaining strong support.
• Fissurectomy alone has variable outcomes. Many surgeons now combine it with botox or LIS rather than performing it in isolation.
• Advancement flap is typically reserved for cases where other options have failed or are not suitable.

Your surgeon’s own experience and outcomes with each procedure matter as much as published statistics.

Recovery time and character

• LIS — recovery tends to be shorter in terms of wound healing. Many people describe significant pain relief within the first few days. The wound is small.
• Fissurectomy — the wound is left open and heals from the bottom up over 4 to 8 weeks. Recovery involves active wound care. People describe the healing as gradual but visible.
• Fissurectomy with botox — similar wound healing timeline to fissurectomy alone, but people often report the sphincter relaxation from botox makes bowel movements during recovery more manageable.

The nature of recovery matters. Some people are more comfortable with a shorter recovery and a permanent muscle change. Others prefer a longer wound-healing process that does not permanently alter the sphincter. Neither preference is wrong.

Whether the sphincter is cut

This is where values come into the decision. LIS involves a permanent, controlled cut to the internal sphincter. Fissurectomy (with or without botox) does not.

Some people feel strongly about preserving the sphincter intact. Others are comfortable with the trade-off given the high success rates of LIS. Some surgeons have strong preferences based on their experience. This is a factor worth discussing openly.

Quality of life

This is the factor people sometimes feel guilty about, but it matters enormously. If you have been in pain for months, if you dread bowel movements, if the condition is affecting your work, your relationships, your mental health — that is part of the equation.

Surgery is not just about whether the fissure has technically failed conservative care. It is about whether the ongoing impact on your life warrants a different approach. That is a legitimate consideration and your surgeon should be receptive to hearing about it.

Surgeon’s recommendation and experience

Across communities, people consistently describe their surgeon’s recommendation as the single most important factor in their decision. A surgeon who has assessed your specific fissure, your anatomy, and your treatment history is in the best position to advise.

That said, understanding the options helps you have a more meaningful conversation and ask better questions. You are not there to override your surgeon’s expertise. You are there to make an informed decision together.

The incontinence question

This deserves its own section because it is the number one fear people describe when considering fissure surgery. It is the reason many people delay the decision. So let us address it as clearly and honestly as we can.

What the concern actually is

The internal anal sphincter plays a role in continence — particularly in maintaining resting tone, which is what keeps things closed when you are not actively trying. LIS involves cutting a portion of this muscle. The concern is that reducing its function could affect bowel control.

What people and studies report

• Minor gas control changes — some people report a temporary reduction in their ability to hold gas, particularly in the early weeks after LIS. For most, this improves over time.
• Occasional urgency — some people describe needing to reach a toilet more quickly than before, especially in the first few months.
• Significant incontinence is uncommon — meaning loss of control over stool. This is a rare but real outcome. Published rates vary, but most large studies report it as a low single-digit percentage.
• Individual risk varies — people who have had previous anal surgery, multiple pregnancies, existing sphincter weakness, or certain medical conditions may have a different risk profile. This is why the conversation with your surgeon about your specific anatomy matters.

Fissurectomy with botox and incontinence

Fissurectomy with botox avoids making a permanent cut to the sphincter. The botox temporarily relaxes the muscle, and its effect wears off after 2 to 3 months. Some people report minor changes in gas control while the botox is active, but this is temporary.

For people who are particularly concerned about incontinence, this is often part of why fissurectomy with botox is appealing. It trades the permanence of LIS for a temporary relaxation effect.

How to think about it

The incontinence conversation is not one to have in the abstract. It is one to have specifically with your surgeon, about your body, your anatomy, your history. General statistics can frame the conversation, but your surgeon’s assessment of your individual risk is what matters most.

Questions to ask:

• Based on my anatomy and history, what is my incontinence risk with LIS?
• Would fissurectomy with botox be a suitable alternative for my fissure?
• If I did experience changes in control, what would management look like?

People who have been through this describe the incontinence concern as something that looms much larger before the decision than after. That is not to dismiss it. It is to say that the anxiety about the possibility is often more consuming than the reality. But it is a real risk, and you deserve to understand it clearly before deciding.

The “I wish I had done it sooner” pattern

This is one of the most consistent things people describe after successful fissure surgery — regardless of which procedure.

People who have lived with a chronic fissure for months or years, who eventually had surgery, who healed — they describe looking back and recognising how much time they spent suffering when they did not have to. Not all of it, perhaps. Conservative care deserves a genuine attempt. But the extra months of deliberating, of hoping the fissure would resolve on its own when it clearly was not going to, of letting fear of the procedure outweigh the reality of daily pain.

Common reflections people share:

• “I spent six months terrified of surgery and the surgery itself was thirty minutes”
• “The worst part was the waiting, not the recovery”
• “I grieved the time I lost more than anything else”
• “My only regret is not doing it sooner”

We share this not to pressure you. The timing of your decision is yours. But it is worth knowing that this pattern is common enough to be remarkable.

The “I wish I had waited” pattern

Honesty requires the counterpoint.

Some people describe regretting the timing or the choice of procedure. The reasons vary:

• Complications — a small number of people experience outcomes that are worse than expected. Incontinence changes that do not fully resolve. Wound healing that takes much longer than anticipated. A fissure that recurs despite surgery.
• Not enough conservative care — some people feel, in retrospect, that they moved to surgery before fully exhausting non-surgical options. Perhaps a different topical, a longer trial, or a course of botox could have resolved the issue without an operation.
• The wrong procedure — some people feel the procedure chosen was not the best fit for their specific situation. A second opinion might have led to a different recommendation.
• Emotional readiness — some people describe feeling pressured into a timeline — by their pain, by a surgeon’s availability, by their own impatience — and wish they had given themselves more space to feel genuinely ready.

These experiences are less common than the “I wish I had done it sooner” accounts, but they are real and they matter. They are part of why this decision deserves careful thought and a surgeon you trust.

Questions to ask your surgeon

Having your questions written down before the appointment makes a significant difference. You will be nervous, and it is easy to forget what you wanted to ask.

Here is a starting list. Add your own.

• Which procedure do you recommend for my specific situation, and why? — This is the most important question. Understanding your surgeon’s reasoning helps you engage with the decision rather than just accepting it passively.
• What is your experience with this procedure? — How many have you done? What outcomes do your patients typically have? Surgeons are generally comfortable with this question and it gives you useful context.
• What are the risks in my case specifically? — Not just general risks. Your risks, based on your anatomy, your history, your situation.
• What does recovery look like realistically? — How long off work? When can I exercise? What will the first week be like?
• What happens if it does not work? — Knowing there is a plan B can be reassuring, even if plan A has a high success rate.
• What stool management do you recommend during recovery? — Getting this sorted before the procedure means you are prepared from day one.
• How will follow-up work? — Will you check the wound? When should I call? What is normal and what is concerning?
• Should I try botox first? — If botox has not already been attempted, this is worth asking. Some surgeons prefer to try botox before proceeding to surgery. Others may recommend going directly to a surgical option based on the fissure characteristics.

See also: Talking to your doctor about symptoms and Preparing for a colorectal specialist appointment

How people make the decision

People describe several different frameworks for reaching their decision. None of these is right or wrong — they are simply the patterns that emerge across many accounts.

The quality-of-life calculation. Some people reach a point where they weigh the daily burden of the fissure against the risks of surgery and find the scales have tipped. The fissure is affecting their work, their relationships, their sleep, their mental health. Surgery becomes the path back to a normal life.

The trust-the-surgeon approach. Some people describe finding a surgeon they trust, asking their questions, and then following the recommendation. They decide that their surgeon’s experience and assessment of their specific anatomy is a better basis for the decision than their own research and anxiety.

The stepped approach. Some people feel more comfortable trying every non-surgical option first — including botox — so that if they do end up having surgery, they know it was truly necessary. Each step that does not work makes the next step feel more justified.

The research-until-ready approach. Some people need to understand everything before they can consent to a procedure. They read studies, forum threads, experience accounts. They reach a point where the information starts to repeat itself, and that saturation point is when they feel ready.

If you are finding it difficult to organise your thinking, our AI experience navigator offers a private, anonymous space to talk through what you are considering. It does not give medical advice, but it can help you clarify your questions and prepare for your appointment.

Preparing for the conversation

Whether you are seeing a surgeon for the first time or going back to discuss surgical options, preparation helps.

Bring your history

• How long you have been dealing with the fissure
• What conservative measures you have tried and for how long
• Which topical treatments you have used, the duration, and whether they helped at all
• Whether you have had botox injections and what happened
• Any previous surgeries in the area
• Other relevant health conditions

Bring your questions

Write them down. Bring the list. Refer to it during the appointment. Do not rely on remembering them in the moment.

Bring someone if it helps

If you are comfortable doing so, having someone with you can help. They can take notes while you focus on the conversation. They can help you remember what was said afterward.

Be honest about the impact

Your surgeon needs to understand not just the physical symptoms but how this is affecting your daily life. If you are avoiding activities, losing sleep, struggling emotionally — say so. This is relevant information that helps your surgeon understand the full picture.

The emotional dimension

The decision about fissure surgery is not purely medical. It is emotional in ways that are difficult to explain to someone who has not been through it. People describe:

Fear. Of the procedure itself. Of anaesthesia. Of the recovery. Of incontinence. Of it not working. Of making the wrong choice. This fear is rational — surgery has real risks and real unknowns. But people also describe the fear as disproportionate to the reality in many cases. The anticipation is often harder than the experience.

Exhaustion. Months of managing a chronic condition take a toll that accumulates quietly. The daily calculations — what to eat, when to eat it, the anxiety before bowel movements, the pain during, the aftermath. By the time surgery is being discussed, many people describe being emotionally depleted. This exhaustion is a valid part of the decision, not a weakness.

Relief. Many people describe an unexpected sense of relief once the decision is made, even before the surgery happens. The months of deliberation end. There is a plan. Something is going to change. People describe sleeping better between the decision and the procedure than they have in months.

Grief. This one surprises people. After successful surgery, some people grieve the time they lost to the condition. Months or years of limited living, cancelled plans, pain that did not have to last as long as it did. This grief is normal and it passes, but it catches people off guard.

Gratitude. People describe a profound appreciation for ordinary things — a painless bowel movement, sitting comfortably, eating without calculating consequences. These things become remarkable after a period of not having them.

If you are struggling with the emotional weight of this decision, that is normal. You are not overreacting. A condition that affects you every single day is a significant burden, and the decision about how to address it deserves to be taken seriously — including the emotional dimension.

What if you are not ready

That is okay. Genuinely.

Surgery for a fissure is an elective procedure in most cases. There is no countdown timer. The fissure is unlikely to become dangerous if you take more time to decide — though it is also unlikely to heal on its own at this stage.

Some things people find helpful when they are not yet ready:

• Continuing conservative care to manage symptoms while they think
• Talking to other people who have been through the decision
• Asking their surgeon what would happen if they waited another few months
• Exploring whether there are non-surgical options they have not yet tried
• Giving themselves permission to not decide today

The only caution is this: waiting is not the same as avoiding. If your quality of life is significantly affected and you are putting off the decision primarily out of fear, it may be worth sitting with that honestly. Fear is understandable, but it is not always the best guide for medical decisions.

After the decision

Once you have decided to go ahead, the focus shifts from deciding to preparing. A few things that people commonly describe as helpful:

• Read about the specific procedure — we have detailed guides on LIS recovery, fissurectomy, and botox for fissure
• Read what others have experienced — our experience pages share what people describe about going through these procedures
• Get your recovery supplies ready — sitz bath, fibre supplements, stool softeners (as advised by your surgeon), comfortable clothing, easy meals prepared
• Plan time off — recovery timelines vary by procedure, but most people take at least a few days to a week off work
• Tell someone — having at least one person who knows what you are going through can make a meaningful difference during recovery

You have done the hard part. You have lived with this, you have researched it, and you have made a decision. Whatever comes next, you are not doing it blindly.

If you experience severe pain that is getting worse, heavy or persistent bleeding, fever, or symptoms that are affecting your ability to function, please seek medical care. You do not need to wait for a scheduled appointment if something does not feel right.