What is the medical term for fluid retention?

== It is where your body retains water. Consuming lots of salt can cause it. That is why they used to make wrestlers consume a whole bunch of salt, because they didn't want them to sweat.

== == == There are two types of water retention: one type where your blood has too much water, and the other where your tissues have too much water. In this type too much water is released from your blood into the spaces between your cells and cannot get back again.

The first type is often caused by a heart or kidney problem and is treated with diuretics. Eating too much salt can increase the amount of water in your blood, which is the main reason why salt raises blood pressure. Tissue water retention is much more complex and diuretics can sometimes make it worse.