Anatomically, your stomach is in close contact with your liver (at right), spleen (at left), pancreas (behind), diaphragm (at the top) and the intestines (beneath). Therefore, cells of the stomach tend to spread into these organs to form other cancers called metastasis.
Gastric cancer treatment itself can lead to complications. Removal of the stomach always leads to nutritional problems. In addition, cancer can recur after initial treatment. To prevent complications during and after treatment, respect all advice and appointments of your doctor, and adopt a healthy lifestyle. A healthy diet is also important.