Nausea and Vomiting University Health Services Patient Education Library Nausea and Vomiting Viral infections are the most common cause of vomiting in young adults. When viruses are to blame, diarrhea is usually present as well. Dehydration Dehydration is the real threat in most vomiting. The speed with which dehydration develops depends on the size of the individual, the frequency of vomiting, and the presence of diarrhea. Bloody, black, or coffee ground appearing vomitus, or severe abdominal pain require immediate medical attention.
Some abdominal discomfort accompanies most every case of vomiting, but severe pain in unusual.
When vomiting is associated with pregnancy, diabetes, or medication you should call your doctor for advice. If the vomiting is associated with a headache or stiff neck you should immediately seek medical attention. Most cases of vomiting from viral infection can be managed at home following a few simple guidelines. The best cure is to put your stomach and intestines at rest. You should take no food or fluids for two hours after vomiting.