Editing Defecation (section)

===Posture===
{{main article|Human defecation postures}}
The positions and modalities of defecation are [[Culture#Cultures by region|culture-dependent]]. [[Squat toilet]]s are used by the vast majority of the world, including most of Africa, Asia, and the Middle East.<ref>{{cite book|last1=Kira|first1=Alexander|title=The Bathroom|date=1976|publisher=Viking Pr|location=New York, N.Y.|isbn=978-0-670-00612-0|pages=115–116|edition=2. ed. New and expanded}}</ref> The use of sit-down [[toilet]]s in the [[Western world]] is a relatively recent development, beginning in the 19th century with the advent of indoor plumbing.<ref>{{cite book |editor1=C. Singer |editor2=E Holmyard |editor3=A Hall |editor4=T. Williams |year=1958 |orig-year=1954 |title=A History of Technology |volume=IV: The Industrial Revolution, 1750-1850 |publisher=Oxford Clarendon Press |pages=507–508 |oclc=886036895}}</ref>