When it comes to anal diseases, people often think of hemorrhoids or anal fissures first. It’s not a big deal to simply wash and apply medicine to improve the symptoms or cure this minor illness. The most important thing that you can do is to make sure that you have a good idea of what you are doing. The common anal fistula is low, short and shallow, and these are “low simple anal fistulas”, which can be easily removed by surgeons. However, once the “hard core” of fistula – high complex fistula appears, even experienced anorectal surgeons will have a headache, while the patient is physically and mentally exhausted, making it difficult for doctors to treat. Traditional treatment relies on the doctor’s experience, keen eyes and dexterous hands. Nowadays, although there are more anal ultrasound, CT, MRI and other imaging devices, there are still possible oversights in the sophisticated equipment to fully grasp and figure out the opponent’s details. In traditional surgery, the doctor has to use a hanging wire to cut the anal sphincter and drain the secretions in order to protect the function of the anus, so that cutting and healing can take place at the same time and finally cure the anal fistula. This is like dropping a scale on a wound that is full of holes. In addition, the daily defecation function of the anus, which can be imagined by dropping a scale on a full of holes, is unforgettable for every anal fistula patient who has undergone traditional wire surgery. The first time I saw this, I was able to get to the bottom of it. The pursuit of smaller incisions, smaller trauma, and shorter healing time is a veritable “small era”. In this “small era”, a video-assisted anal fistula treatment technology was born specifically for “seeing anal fistulas”. It uses sophisticated video equipment to drill into the fistula tract and follow it wherever it goes, looking directly at the root cause and finally closing the internal opening of the anus completely with a sophisticated closure device. Video-assisted anal fistula treatment is a sphincter-preserving procedure with less surgical trauma, faster recovery, and good postoperative anal function.