ASK THE
DOCTOR:
More fiber will stave off diverticulosis
By DR. JIM MITTERANDO
Q
I recently had a flexible sigmoidoscopy that showed I have diverticulosis. My
doctor said this was common and no need to worry. Should I be concerned? My friend
told me not to eat nuts and fruits with small seeds. What should I do? What is
the difference between diverticulosis and diverticulitis? Am I at increased risk
for cancer?
A
Diverticulosis affects one-half of Americans age 60 and over. Too little fiber
contributes to hard stools that are slow to pass. This increases pressure in the
colon causing bulging of the colon wall resulting in small, ¼ inch pouches
called diverticula. Diverticula tend to develop on the left side of the colon
where the stool is harder. Diverticulosis is less of a problem in other countries
where fiber intake is higher.
Diverticulosis
generally does not cause any symptoms. It is often an incidental finding during
flexible sigmoidoscopy, colonoscopy or barium enema.
Occasionally,
diveticula can cause rectal bleeding. Sometimes, the pouch can become inflamed
or infected called diverticulitis. Signs of diverticulitis include left lower
abdominal pain and fever in someone over age 40. Most infections are treated on
an outpatient basis with oral antibiotics. More severe infections are treated
with hospitalization, bowel rest (no eating), IV fluids and IV antibiotics.
Diagnosis
is often made simply by history and examination and may require blood tests and
CT scans. Occasionally, people require surgery if the infection does not clear,
an abscess develops or the diverticula ruptures or diverticulitis recurs. The
surgeon removes the effected part of the colon. During severe infections, the
surgeon may need to create a temporary colostomy (an opening of the belly from
which the colon drains stool into a bag) that can later be reversed.
Diverticulosis
does not increase your chance of colon cancer.
Years ago,
people were warned to avoid foods with small seeds out of fear that they might
become stuck in a pouch causing diverticulitis. This is no longer believed to
be true. In fact, you should increase fiber by eating at least five to seven servings
of fruits and/or vegetables per day to strive for 30 grams of daily fiber intake.
If you have a hard time consuming this much fiber, consider adding a fiber supplement
such as psyllium (Metamucil, Fiberall) or methylcellulose (Citrucel). Drinking
plenty of fluids and exercising regularly will also reduce the risk of developing
both constipation and diverticulosis.
Dr.
Jim Mitterando is a family doctor at Cohasset Family Practice and a staff member
at South Shore Hospital in Weymouth.
Readers
should send questions to: Ask the Doctor, The Patriot Ledger, P.O. Box 699159,
Quincy, MA 02269-9159, or by E-mail to his attention at features@ledger.com.
Questions
of general interest will be answered in this column. The information in this column
is not intended to diagnose individual conditions, and individual replies are
not possible. Readers should see their own doctors about specific problems.
Copyright
2003 The Patriot Ledger
Transmitted Tuesday, September 23, 2003