What this experience covers
This experience describes the decision to have lateral internal sphincterotomy (LIS) for a chronic anal fissure and the recovery that follows. It is a composite from many anonymized accounts — not one story, but the common patterns that emerge across many.
LIS is often described as a last resort, but for people who have exhausted other treatments, it is frequently the thing that finally resolves months or years of pain. The decision is difficult. The recovery is manageable. The relief is profound.
The pattern
The decision: weighing the options
People arrive at the decision for LIS after months — sometimes years — of failed treatments. Topical medications, dietary changes, sitz baths, and often botox injections have not fully resolved the fissure. Daily pain persists.
The central tension is between the high success rate of LIS (typically above 90%) and the small risk of some degree of continence change. People describe reading extensively, seeking second opinions, and going back and forth before committing.
The tipping point, for many, is quality of life. When the pain of living with the fissure exceeds the fear of surgery, the decision becomes clearer.
Pre-op: anxiety peaks
The days before surgery are dominated by anxiety. People describe not sleeping well, imagining worst-case scenarios, and questioning their decision. This is normal and nearly universal in the accounts.
Practical preparation is straightforward: stool softeners, a cleared schedule for recovery, and supplies for home comfort.
The day of surgery
LIS is typically a short procedure — often 15-30 minutes — performed under general or spinal anesthesia. People describe the pre-operative wait as the worst part. The surgery itself is a gap in memory for most.
Waking up, many people report that the fissure pain they have been living with is already different. Not gone — there is surgical discomfort — but the sharp, burning fissure pain is often noticeably reduced or absent even in the first hours.
Days 1-3: early recovery
Soreness and mild pain at the surgical site are typical. People describe it as a dull ache — distinctly different from the sharp fissure pain they were accustomed to. Pain medication is usually needed for the first two to three days.
The first bowel movement is the most anticipated and feared moment. Most people report that it is uncomfortable but far less painful than bowel movements with an active fissure. Stool softeners make a significant difference here.
Days 4-7: adjustment
Pain decreases steadily. People start to re-engage with daily routines. There may be some mild bleeding or discharge, which is normal. Sitz baths continue to help.
A quiet realization often occurs during this week: the constant background pain of the fissure is gone. For people who have lived with it for months, this absence of pain is striking.
Weeks 2-4: healing
Recovery continues. Most people feel substantially better by the two-week mark. Activity levels increase. Bowel movements become less anxiety-inducing as the body adjusts to the slightly reduced sphincter tone.
Some people notice minor changes in gas control or a slight sense of urgency. For most, these are temporary and resolve as healing progresses.
The relief
The most consistent theme across accounts is the depth of relief people feel once they have healed. Many describe it as getting their life back. The regret, if any, is almost always about waiting too long rather than having the surgery.