What's the plural form of hypercalcinuria? Here's the word you're looking for.
Answer
The noun hypercalcinuria can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be hypercalcinuria.
However, in more specific contexts, the plural form can also be hypercalcinurias e.g. in reference to various types of hypercalcinurias
or a collection of hypercalcinurias.