First: there are many kinds of diseases can cause retching, more common is the stomach uncomfortable, in which case we can do a gastroscopy, if the patient itself is suffering from aspects of gastrointestinal disease, it is possible to indigestion, just in time to eat some pungent food caused vomiting.
Second: another word, if the female infection is likely to be pregnant, because in the early stages of pregnancy, the fertilized egg in the uterus for implantation, the stage of embryonic development is not very stable, the female body progesterone level will serious illness, so there will be vomiting temporary.
Third: sometimes because some of the side effects of drugs can also cause vomiting, especially as some cancer patients, they finished chemotherapy after the body to bear the side effects of too big, hair loss will vomit, but the specific situation but also specific analysis, the best you can ask professional doctor.
Matters needing attention
If the body is often the best we can retch, to the hospital to check my stomach. Many patients, who are suffering from stomach disease, but do not know themselves, like she can do Helicobacter pylori test, usually side effects are small, and the results are faster.