Ishmael Jaiyesimi, D.O., an oncologist at Beaumont Hospital in Royal Oak, Michigan, tells WebMD ... cause bleeding, which siphons off more red blood cells "There is something called the anemia ...

A lot of things can cause it, including diseases, a poor diet, or heavy bleeding. Mild anemia probably won’t make you thirsty, but if it gets severe, you might start craving more water.