Brushite is a calcium phosphate mineral that is commonly found in the human body, particularly in the kidneys and urinary tract. Though the mineral itself may be quite familiar to some, there are several synonyms that can be used to describe it. These include dicalcium phosphate dihydrate, calcium hydrogen phosphate dihydrate, and calcium monohydrogen phosphate. Each of these terms refers to the same chemical compound, but may be used under different circumstances depending on the context in which it is being discussed. Regardless of the term used, brushite plays an important role in both the maintenance and treatment of various medical conditions.