(En español: Polidipsia) If someone's diabetes isn't under
control, he or she might be really thirsty and drink a lot of
fluids. Polydipsia is the medical word for this. In diabetes,
polydipsia happens because the person's blood sugar levels are
high and the kidneys are working overtime to get rid of the
sugar. To do this, the kidneys produce more urine (pee). A lot
of fluid leaves the body in pee so the person feels really
thirsty and tries to replace the fluid by drinking a lot.