Because of the issue of definition, it has always been
difficult to study constipation in the general population.
What we have learned is that women, especially petite
women within child-bearing age, seem to be the population most afflicted with constipation (2).
One way to get general information may be through
laxative use. However estimates of laxative use
(which have been estimated at 10% of the U.S.
population) may not be an adequate way to assess
populations as patients concerned about
constipation are prone to underestimate bowel
frequency and overuse laxatives (3). This is why
physicians need to take an extensive patient history
when assessing the patient’s bowel issues.
Questions should include what they consider
“normal”, how long they have been constipated,
and what remedies have they tried and when. A
stool diary which includes time, difficulty in
passing, general appearance and size of stool
should be considered along with a food and water
diary.