Nausea and vomiting may be caused by pregnancy, drug factors, but also may be chronic gastritis, functional dyspepsia, cirrhosis of the liver and other digestive diseases, cerebral hemorrhage, hypertensive encephalopathy and other diseases precursor.
1. Pregnancy, drug factors: most of the early pregnancy can be nausea, or even vomiting, usually at 6 weeks of gestation; the use of chemotherapy drugs, digitalis and other drugs, such as etoposide, digoxin, etc., may lead to nausea, want to vomit.
2. Digestive system diseases: chronic gastritis patients may have nausea, vomiting, abdominal pain, etc.; functional dyspepsia may have nausea, vomiting and other symptoms, but also with belching, bloating, etc.; cirrhosis of the liver patients may have a loss of appetite, nausea, vomiting, especially after eating greasy food.
3. Neurological and cardiovascular diseases: patients with cerebral hemorrhage may have nausea and vomiting after the intracranial pressure rises; hypertensive encephalopathy may have nausea, vomiting, headache, blurred vision and other symptoms due to the sharp rise in blood pressure.
Excluding physiological factors, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, under the guidance of a doctor to determine the cause of the disease and targeted treatment, do not take medication, so as not to delay the condition.