Oh certificate

&Nbsp; vomiting is caused due to various reasons inverse of the oesophagus, stomach and intestinal peristalsis, and with strong spasmodic contraction of the abdominal muscle and diaphragmatic muscle, causing the esophagus and gastrointestinal contents of emission from the mouth of a symptom. Vomiting, sometimes the instinct of the human body defense mechanisms, to ingestion of harmful substances discharged, and thereby play a protective role. Almost any infection or tension can cause vomiting.