Unexplained weight loss
Most times, an easy weight loss is a sign of something more serious. Unexplained weight loss can be an early sign of certain types of cancer. Cancers of the esophagus, throat, and stomach can present with difficulty swallowing or feelings of fullness, often causing significant unintended weight loss. Colon cancer is also a frequent contributor to unintentional weight loss, thanks to the changes it can cause in your digestive habits.