Eli5:what’s the difference between an illness, a disease and a disorder? And which of these categories does ocd fit in?

Question

Eli5:what’s the difference between an illness, a disease and a disorder? And which of these categories does ocd fit in?

In: Other

Answer 1

On a scientific, technical level there is no difference between any of these terms. Some get used in specific circumstances because they were part of the name (i.e. OCD is sticking with “disorder” because it already is) and so people would look at you weird if you tried changing up the acronyms, but the words themselves are 100% interchangeable no matter how much people try to argue about it.