Most Fissure's can be treated conservatively , atleast the acute one's. Most of the chronic fissure's need some surgical treatment in the form of an operation. Dilatation : Forceful opening of the anal canal which is under spasm, done under anaesthesia. These lead to loss of bowel control in most cases due to damage to the anal sphinctor's/valves. Hence largely abandoned or done by people not abreast with the newer method's.
Lateral Internal Sphincterotomy : Achieves the same principle of releasing the anal spasm but where a small muscle is incised . Need to be done by expert's as the degree of incised muscle directly correlates with the bowel control.
Advanced Treatments Most of the treatments are painless and bloodless. In many cases, patients can be discharged in 1 day. The chronic fissure which fail to respond to conservative treatment are dealt with Laser Lateral Internal Sphincterotomy (Laser-LIS) which is the least invasive and highly effective , thus according the patient full control over his bowel movements.