noun, noun or participle which takes 'suru', intransitive verb
defecation; bowel movement
Medical and formal term for the act of passing feces. Used as a noun or with する as an intransitive verb.
便秘のため、排便が困難です。
Due to constipation, bowel movements are difficult.
毎朝、規則的に排便
I try to have a bowel movement regularly every morning.