what causes severe and sudden cramping in the feet and ankles
Congestive heart failure causes the ankles and feet to swell because the heart is not pumping as much blood to the kidneys. This causes fluid retention, which results in the ankles and other areas of the body swelling up. Kidney failure can also cause swollen feet and ankles, again because of fluid retention. Though some swelling of the ankles in pregnancy is normal, if the ankles start to swell quickly, it may be a sign of eclampsia, explains WebMD.