Nausea and dry vomiting all the time cannot be directly diagnosed as cancer. It may be caused by chronic gastritis, gastric retention and other diseases, and of course, the possibility of gastric cancer cannot be excluded. Nausea and dry vomiting is not a specific symptom, but can occur in many cases, such as vomiting in women during the pre-pregnancy period; chronic gastritis lacks specific symptoms, and most patients are often asymptomatic or have indigestion symptoms of varying degrees, which may also manifest as vague pain in the upper abdomen, nausea and dry vomiting, loss of appetite, postprandial fullness, acid reflux, etc.; gastric retention mainly manifests as vomiting, and the vomit is often persistent food, usually not containing The main manifestation of gastric retention is vomiting. Therefore, nausea and dry vomiting all the time cannot be diagnosed as cancer. In a word, there are many causes of nausea and dry vomiting. In addition to early medical treatment, we should pay attention to care in life. It is recommended to have a reasonable diet, regular work and rest, and pay close attention to your body so that you can recover your health as soon as possible.