![](https://www.geni.com/images/external/x_com_black_16.png?1718400071)
![](https://www.geni.com/images/facebook_white_small_short.gif?1718400071)
Stomach cancer, also known as gastric cancer, is cancer developing from the lining of the stomach. ===** Stomach cancer usually begins in the mucus-producing cells that line the stomach. This type of cancer is called adenocarcinoma.* Early symptoms may include heartburn, upper abdominal pain, nausea and loss of appetite. * Later signs and symptoms may include weight loss, yellow skin, vomiting,...