Surgery is done under spinal/general anesthesia so no pain during it. After surgery there's mild pain for 2-3 days which is easily managed with painkillers and sitz baths. Your fistula is very small (0.03cc) so recovery is usually quick. Nothing to fear.

A small low intersphincteric fistula associated with a chronic fissure is usually treated with a minor surgical procedure. The surgery is performed under spinal or general anesthesia, so you should not feel pain during the operation. Mild to moderate pain after surgery is expected for a few days but is generally well controlled with pain medications, warm sitz baths, and proper wound care. Most patients experience significant relief of their symptoms as healing progresses. Discuss the exact procedure (fistulotomy or another sphincter-sparing option) and expected recovery with your proctologist.

No it’s not painful and done under saddle anaesthesia, you will be conscious but won’t feel any pain . You will be injected anaesthesia in lower back ,only that injection you will feel

A small low intersphincteric fistula (0.03 cc) associated with a chronic fissure is generally a straightforward condition to treat surgically. The operation is usually short and performed under anesthesia, so you will not feel pain during the procedure. It is normal to have some pain or discomfort for a few days after surgery, but this is usually well controlled with pain medications, warm sitz baths, stool softeners, and proper wound care. Most patients experience gradual improvement over 1–2 weeks, and the pain from the chronic fissure itself often improves significantly once the underlying problem is treated. Do not let fear of postoperative pain stop you from getting treated, as delaying surgery may prolong your symptoms or allow the fistula to persist.

Well I donot want to sugar coat it But pain will be there If u r worried about pain U have option of laser fistula surgery But either surgery is required only if u some discharge from perianal region like pus or water or stools If you asymptomatic wait But if any symptoms are there get it done It’s a small surgery Because of the area it’s slight more painful compared to other regions