An Overview of Diarrhea During Pregnancy
There are many intestinal problems that a woman gets to look forward to during pregnancy.
Diarrhea tends to be one of the least common of these. Diarrhea is defined as loose, watery, unformed stools occurring more than three times in one day. It is not the occasional loose stool or the frequent passing of formed stools.
There are a couple of reasons why diarrhea is not very common during pregnancy. The first is that
prenatal vitamins taken during pregnancy tend to constipate a woman. The second reason is that as pregnancy progresses, the intestines tend to slow down, which also results in
constipation.
Yet pregnant women are just as susceptible to becoming infected with many of the viruses and bacteria that can cause diarrhea as women who are not pregnant.
Causes of Diarrhea During Pregnancy
Just as with women who are not pregnant, there are many possible causes of diarrhea in pregnant women.
Probably the most common cause is an infection with a virus that causes
stomach flu (
see Types of Stomach Flu Viruses). Technically, the term "stomach flu" is not correct. The so-called stomach flu is not caused by the
influenza virus, nor does it infect the stomach. Instead, stomach flu viruses infect the small intestine.
Other possible causes of diarrhea during pregnancy include bacteria (such as
Escherichia coli), parasites (such as
Giardia), medications, or other medical conditions (such as irritable bowel syndrome or
Crohn's disease).
Many women also experience diarrhea at the onset of labor (
see Signs of Labor).