Liquid discharge from anus. No bm or pain or anything?

Anorectal discharge. You may be describing mucus discharge, impaired anal sphincter function, or even a draining abscess or fistula. Gi or proctologist will first perform a visual inspection & digital exam after taking your history as to circumstances, duration, quality, timing of symptoms & your risk factors. They may then determine topical treatment, antibiotics, or perform further evaluation of rectal lining.