You can get stomach cancer this year even if you just had a gastroscopy last year. Stomach cancer is not directly related to having a gastroscopy. If you had a gastroscopy 1 year ago and no problems were found, the chances of developing stomach cancer after 1 year are very small. However, many kinds of changes may occur within 1 year. Unhealthy diet or irregular life for a long period of time may lead to stomach disease, and the condition may slowly develop into cancer as it keeps progressing. If you want to know whether you are suffering from stomach cancer or not, you should go to the hospital for gastroscopy in time, and be able to extract the local tissues for biopsy to make the final pathological diagnosis, and if you are diagnosed with stomach cancer, you should go to the hospital for surgery, radiotherapy or chemotherapy in time.