Frequent bloating for no apparent reason and over a longer period of time might indicate ovarian cancer, especially if it is accompanied by swelling in the abdomen, pelvic pain, and feeling of fullness.
Similarly, bloating or pain in the stomach after eating might indicate stomach cancer.
3. Chronic Heartburn
Usually, heartburn is a sign of acid reflux. However, persistent heartburn might be related to esophageal cancer or Barrett’s esophagus. In May 2012, the journal Clinical Gastroenterology and Hepatology have published a study which explains that chronic heartburn can cause inflammation of the tissue lining in the esophagus that in turn raises the risk of esophageal cancer.
Furthermore, in 2013, the American Journal of Cell Physiology has published the research conducted by scientists at Rhode Island Hospital, which explains the link between Barrett’s esophagus and esophageal cancer development.