The quantitative determination of water in stool, commonly referred to as stool water content analysis, is a diagnostic test used to evaluate the water content in feces. This test is crucial for diagnosing conditions associated with abnormal water absorption or secretion in the gastrointestinal tract, such as various forms of diarrhea. Diarrhea can result from infections, inflammatory bowel diseases (IBD), irritable bowel syndrome (IBS), or malabsorption syndromes, where there is either excessive secretion or inadequate absorption of water in the intestines....
Individuals experiencing persistent or acute diarrhea, signs of dehydration, or those with symptoms suggesting malabsorption or digestive tract disorders such as IBS or IBD, should consider this test. It helps in assessing the severity of diarrhea and the extent of water loss or malabsorption.
Symptoms that suggest a need for testing stool water content include frequent loose or watery stools, abdominal pain, urgency, and signs of dehydration such as dry mouth and increased thirst. These symptoms indicate abnormal water handling by the intestines.
Abnormal results typically indicate either excessive water content due to hypersecretion or reduced absorption by the intestines. This can be caused by infections (bacterial, viral, or parasitic), inflammatory conditions like Crohn’s disease or ulcerative colitis, or functional disorders like IBS.
The test involves collecting a stool sample, which is then analyzed in a laboratory to measure its water content. The percentage of water in the stool is calculated, providing insights into the gastrointestinal tract’s ability to absorb water and the possible presence of conditions that prevent normal absorption.