Diarrhea is characterized by an increased frequency and liquidity of bowel movements, and it can lead to several associated symptoms. Dehydration is a significant symptom that indicates diarrhea because diarrhea causes the body to expel liquids and electrolytes rapidly, which can lead to a loss of hydration. When the body loses more fluid than is consumed, it can manifest as dehydration. This condition can further complicate health by leading to symptoms such as dry mouth, decreased urine output, and fatigue.
Other symptoms like steady abdominal pain, vomiting, and stomach cramping can certainly occur with gastrointestinal disturbances, but they are not as directly indicative of diarrhea as dehydration. Particularly, dehydration serves as a warning sign of the severity of diarrhea, emphasizing the importance of fluid replacement and monitoring in affected individuals.