Hard masses felt in the stomach may not necessarily be stomach cancer, but may be gastric polyps or benign tumors, which need to be further confirmed by gastroscopy, and cannot be generalized. Hard lumps in the stomach, such as erosive gastritis, peptic ulcer, duodenal ulcer, etc., can lead to pseudomasses in patients, but they are usually not accompanied by obvious pressure pain symptoms and can usually disappear on their own. If it is a hard mass that cannot be moved and is relatively fixed, tumor can be considered. Tumors are classified into benign tumors and malignant tumors. Benign tumors are mostly seen in gastric smooth muscle tumors and gastric mesenchymal tumors, while malignant tumors are mostly seen in gastric cancer. It is suggested that patients should visit the gastroenterology department of the hospital, improve the relevant examination and carry out the corresponding treatment under the guidance of doctors. In addition, patients need to have a regular diet in addition to the relevant treatment. If the tumor has been surgically removed, the patient should follow medical advice to gradually transition from fasting to semi-liquid or liquid diet.