Pediatric Surgeon, Laparoscopic Surgeon
MBBS, FCPS, FEBPS, FACS, Dip.MAS
Nausea is a sensation of unease and discomfort in the upper stomach with an involuntary urge to vomit. It may precede vomiting, but a person can have nausea without vomiting. When prolonged, it is a debilitating symptom. Nausea is a non-specific symptom, which means that it has many possible causes.