Some problems,
like stroke, diabetes, or a blockage in
the intestines, can cause constipation.
These disorders may affect the
muscles or nerves used for normal
bowel movements. A doctor can
test to see if the problem is medical.
Medical problems can often be
treated. Another condition, called
irritable bowel syndrome (IBS),
can cause constipation. IBS is a
common disorder of the intestines
that results in pain, bloating, and
constipation or diarrhea