20 Most Common Cancer Signs that You Probably Ignored – But shouldn’t

18. Loss of appetite

Though it’s common that you experience a loss of appetite for a wide range of reasons, but an unexplained, longterm anorexia can signify more serious medical conditions. Ovarian, lung, stomach and pancreatic cancers could all be the cause of loss of appetite. Tumors release hormones that may distort your body's perception of hunger, making you feel full when you're not.