A 42-year-old male presented to the emergency department with profuse, watery diarrhea, described as "rice-water" stools, and vomiting. Symptoms began abruptly two days ago, and he noted increasing weakness and dehydration. The patient recently returned from a coastal region where a cholera outbreak had been reported. He denied abdominal pain or fever. On examination, he was tachycardic and had dry mucous membranes, sunken eyes, and poor skin turgor, indicating severe dehydration. Laboratory results confirmed electrolyte imbalances, with low potassium levels. The patient was diagnosed with cholera, and immediate rehydration with intravenous fluids and oral rehydration salts was initiated. Antibiotics were considered to reduce the duration of diarrhea.