Although "incontinence," used by itself, generally refers to inability to restrain
urine, it can also apply to
defecation. Medically, these are known respectively as
urinary and
fecal incontinence.
In the case of fecal incontinence, the inability referred to here is
physiological. People who have
stools that should be restrainable and
anal sphincters that should be capable of restraining them, but for some reason still lack control, are said to have
encopresis.
Also note that the moral or personal aspect of incontinence referred to by
Webster 1913 had mostly disappeared from
American English by the end of the
twentieth century. The term now refers almost exclusively to the bladder or bowel condition.