Frequent hiccups may not necessarily be a precursor of stomach cancer, but can be triggered by various reasons, such as drinking cold water may cause hiccups, which is a manifestation of diaphragm spasm in the upper digestive tract and not a precursor of stomach cancer. The diagnosis of gastric cancer should be confirmed by gastroscopy and pathology, which is the gold standard of gastric cancer diagnosis. Hiccups can occur in a variety of diseases, such as gastritis, gastric ulcer, flatulence, functional dyspepsia, and cholecystitis. Therefore, hiccups generally depend on whether there are any accompanying symptoms. If hiccups are accompanied by stomach pain, bloating, black stools, and gastrointestinal bleeding, you should visit a regular gastroenterology department for gastroscopy. If you have occasional hiccups when you encounter cold air or drink cold water, you don’t need to deal with them if you don’t have stomach pain or bloating.