They can also develop between two blood vessels, for instance among an artery and a vein or in between two arteries. Comparative analyze among intersphinecteric ligation of perianal fistula as opposed to typical fistulotomy with or with no seton from the treatment of perianal fistula: A prospective randomized controlled demo. https://sarthicare.com/symptoms-that-call-for-immediate-laser-fissure-treatment/