There are actually many different classifications of gastritis. The superficial gastritis and erosive gastritis that generally occur do not turn into gastric cancer. However, there is a disease called chronic atrophic gastritis, which is a risk factor for gastric cancer, and this gastritis can easily become cancerous and progress to gastric cancer. In normal daily life, many people do not pay attention to their diet and living habits, which may lead to gastritis in the stomach. Gastritis can appear as superficial gastritis and erosive gastritis depending on the depth and severity of the lesion. These gastritis can be completely cured by adjusting the diet and lifestyle as well as necessary medication, and usually will not turn into gastric cancer. However, atrophic gastritis is a special form of gastritis that has the risk of evolving into gastric cancer. This form of gastritis is characterized by atrophic changes in the gastric mucosa, which may lead to mutation of gastric mucosal cells into gastric cancer. The higher the degree of atrophy and the longer it lasts, the higher the chance of developing a tumor. Atrophic gastritis is sometimes accompanied by intestinal epithelial metaplasia of the gastric mucosa, which increases the risk of developing gastric cancer. Atrophic gastritis, in many cases, has no specific symptoms and the symptoms are very insidious, making diagnosis difficult as well, leading to a disease that can change unnoticed. Most kinds of gastritis do not turn into cancer, but it is important to pay attention to examinations in order to detect atrophic gastritis and give effective treatment to prevent further evolution of the disease.