What is the primary symptom of short bowel syndrome (SBS)?

The primary symptom of short bowel syndrome (SBS) is diarrhea. This condition occurs when a significant portion of the small intestine is removed or damaged, resulting in reduced absorptive capacity. The small intestine plays a crucial role in nutrient absorption, and with less surface area available, individuals often experience malabsorption, leading to watery stools. Diarrhea can vary in frequency and may also contain undigested food particles or excessive fat, given the impaired absorption of nutrients.

In contrast, while vomiting, constipation, and abdominal pain may occur in individuals with digestive disorders or complications related to short bowel syndrome, they are not the hallmark symptom of this condition. Diarrhea directly ties back to the functional impact of having insufficient intestinal length to effectively absorb nutrients and fluids.