When you are confronted with something you don't know, how deep do you research it?

For example: when my dog was diagnosed with Melanoma and the vet mentioned an extreme surgery, I had to know everything I could know about it.

Same with when I (or someone else) is prescribed certain meds. I like knowing all the side effects so I can tell them or so I know.

That is just an example. I like doing deep research. Is just getting the “gist of it” good enough for you, or do you need more info?