Abstract:Abstract:?The incidence rate of gastric cancer is high in China, and early diagnosis and treatment is the key. Carrying out gastroscopy screening in high-risk population is an important measure to detect early gastric cancer. Taking defoamer and slime remover before gastroscopy can improve mucosal visualization, shorten the endoscope operation time and reduce the missed diagnosis of early gastric cancer. Combination medication is better than single medication. However, there is no consensus on when to take the medicine before the gastroscopy and what posture to take after taking the medicine for the best mucosal visualization. This article reviews the progress of the application of defoamers and slime removers.